Bài tập Toán lớp 5 Phép trừ phân số khác mẫu số có đáp án

\(\begin{array}{l}\frac{7}{9} - \frac{2}{5} = \frac{{35}}{{45}} - \frac{{18}}{{45}}\\ = \frac{{17}}{{45}}\end{array}\)

\(\begin{array}{l}\frac{5}{8} - \frac{1}{6} = \frac{{15}}{{24}} - \frac{4}{{24}}\\ = \frac{{11}}{{24}}\end{array}\)

\(\begin{array}{l}\frac{4}{7} - \frac{2}{{11}} = \frac{{44}}{{77}} - \frac{{14}}{{77}}\\ = \frac{{30}}{{77}}\end{array}\)

\[\begin{array}{l}\frac{6}{{13}} - \frac{1}{5} = \frac{{30}}{{65}} - \frac{{13}}{{65}}\\ = \frac{{17}}{{65}}\end{array}\]

\(\begin{array}{l}\frac{3}{4} - \frac{1}{{10}} = \frac{{15}}{{20}} - \frac{2}{{20}}\\ = \frac{{13}}{{20}}\end{array}\)

\(\begin{array}{l}\frac{8}{{11}} - \frac{3}{7} = \frac{{56}}{{77}} - \frac{{33}}{{77}}\\ = \frac{{23}}{{77}}\end{array}\)

\(\begin{array}{l}\frac{5}{6} - \frac{2}{9} = \frac{{15}}{{18}} - \frac{4}{{18}}\\ = \frac{{11}}{{18}}\end{array}\)

\(\begin{array}{l}\frac{4}{5} - \frac{3}{{14}} = \frac{{56}}{{70}} - \frac{{15}}{{70}}\\ = \frac{{41}}{{70}}\end{array}\)

\(\begin{array}{l}\frac{7}{{12}} - \frac{2}{{13}} = \frac{{91}}{{156}} - \frac{{24}}{{156}}\\ = \frac{{67}}{{156}}\end{array}\)

\[\begin{array}{l}\frac{6}{7} - \frac{1}{8} = \frac{{48}}{{56}} - \frac{7}{{56}}\\ = \frac{{41}}{{56}}\end{array}\]

\(\begin{array}{l}\frac{5}{9} - \frac{1}{4} = \frac{{20}}{{36}} - \frac{9}{{36}}\\ = \frac{{11}}{{36}}\end{array}\)

\[\begin{array}{l}\frac{4}{{11}} - \frac{2}{{15}} = \frac{{60}}{{165}} - \frac{{22}}{{165}}\\ = \frac{{38}}{{165}}\end{array}\]

\(\begin{array}{l}\frac{7}{{10}} - \frac{3}{8} = \frac{{28}}{{40}} - \frac{{15}}{{40}}\\ = \frac{{13}}{{40}}\end{array}\)

\(\begin{array}{l}\frac{6}{{13}} - \frac{1}{7} = \frac{{42}}{{91}} - \frac{{13}}{{91}}\\ = \frac{{29}}{{91}}\end{array}\)

\[\begin{array}{l}\frac{5}{6} - \frac{3}{{11}} = \frac{{55}}{{66}} - \frac{{18}}{{66}}\\ = \frac{{37}}{{66}}\end{array}\]

\(\begin{array}{l}\frac{4}{9} - \frac{1}{{12}} = \frac{{16}}{{36}} - \frac{3}{{36}}\\ = \frac{{13}}{{36}}\end{array}\)

\(\begin{array}{l}\frac{7}{8} - \frac{2}{5} = \frac{{35}}{{40}} - \frac{{16}}{{40}}\\ = \frac{{19}}{{40}}\end{array}\)

\[\begin{array}{l}\frac{5}{7} - \frac{3}{{10}} = \frac{{50}}{{70}} - \frac{{21}}{{70}}\\ = \frac{{29}}{{70}}\end{array}\]

\(\begin{array}{l}\frac{3}{4} - \frac{1}{9} = \frac{{27}}{{36}} - \frac{4}{{36}}\\ = \frac{{23}}{{36}}\end{array}\)

\(\begin{array}{l}\frac{6}{{11}} - \frac{2}{{13}} = \frac{{78}}{{143}} - \frac{{22}}{{143}}\\ = \frac{{56}}{{143}}\end{array}\)

\(\begin{array}{l}\frac{5}{{12}} - \frac{1}{8} = \frac{{10}}{{24}} - \frac{3}{{24}}\\ = \frac{7}{{24}}\end{array}\)

\(\begin{array}{l}\frac{4}{5} - \frac{2}{7} = \frac{{28}}{{35}} - \frac{{10}}{{35}}\\ = \frac{{18}}{{35}}\end{array}\)

\(\begin{array}{l}\frac{7}{9} - \frac{3}{{11}} = \frac{{77}}{{99}} - \frac{{27}}{{99}}\\ = \frac{{50}}{{99}}\end{array}\)

\(\begin{array}{l}\frac{6}{7} - \frac{2}{9} = \frac{{54}}{{63}} - \frac{{14}}{{63}}\\ = \frac{{40}}{{63}}\end{array}\)

\(\begin{array}{l}\frac{5}{{13}} - \frac{1}{6} = \frac{{30}}{{78}} - \frac{{13}}{{78}}\\ = \frac{{17}}{{78}}\end{array}\)

\(\begin{array}{l}\frac{4}{{11}} - \frac{1}{5} = \frac{{20}}{{55}} - \frac{{11}}{{55}}\\ = \frac{9}{{55}}\end{array}\)

\(\begin{array}{l}\frac{7}{{10}} - \frac{2}{{13}} = \frac{{91}}{{130}} - \frac{{20}}{{130}}\\ = \frac{{71}}{{130}}\end{array}\)

\(\begin{array}{l}\frac{5}{8} - \frac{3}{{14}} = \frac{{35}}{{56}} - \frac{{12}}{{56}}\\ = \frac{{23}}{{56}}\end{array}\)

\(\begin{array}{l}\frac{3}{4} - \frac{1}{{12}} = \frac{9}{{12}} - \frac{1}{{12}}\\ = \frac{8}{{12}} = \frac{2}{3}\end{array}\)

\(\begin{array}{l}\frac{6}{7} - \frac{2}{{11}} = \frac{{66}}{{77}} - \frac{{14}}{{77}}\\ = \frac{{52}}{{77}}\end{array}\)

\(\begin{array}{l}\frac{5}{9} - \frac{2}{{15}} = \frac{{25}}{{45}} - \frac{6}{{45}}\\ = \frac{{19}}{{45}}\end{array}\)

\(\begin{array}{l}\frac{4}{5} - \frac{1}{7} = \frac{{28}}{{35}} - \frac{5}{{35}}\\ = \frac{{23}}{{35}}\end{array}\)

\(\begin{array}{l}\frac{7}{{12}} - \frac{3}{{10}} = \frac{{35}}{{60}} - \frac{{18}}{{60}}\\ = \frac{{17}}{{60}}\end{array}\)

\(\begin{array}{l}\frac{6}{{13}} - \frac{2}{9} = \frac{{54}}{{117}} - \frac{{26}}{{117}}\\ = \frac{{28}}{{117}}\end{array}\)

\(\begin{array}{l}\frac{5}{8} - \frac{1}{{11}} = \frac{{55}}{{88}} - \frac{8}{{88}}\\ = \frac{{47}}{{88}}\end{array}\)

\(\begin{array}{l}\frac{4}{7} - \frac{1}{{10}} = \frac{{40}}{{70}} - \frac{7}{{70}}\\ = \frac{{33}}{{70}}\end{array}\)

\(\begin{array}{l}\frac{5}{6} - \frac{1}{4} = \frac{{10}}{{12}} - \frac{3}{{12}}\\ = \frac{7}{{12}}\end{array}\)

\(\begin{array}{l}\frac{4}{7} - \frac{1}{3} = \frac{{12}}{{21}} - \frac{7}{{21}}\\ = \frac{5}{{21}}\end{array}\)

\(\begin{array}{l}\frac{3}{5} - \frac{2}{9} = \frac{{27}}{{45}} - \frac{{10}}{{45}}\\ = \frac{{17}}{{45}}\end{array}\)

\[\begin{array}{l}\frac{7}{8} - \frac{3}{{10}} = \frac{{35}}{{40}} - \frac{{12}}{{40}}\\ = \frac{{23}}{{40}}\end{array}\]

\(\begin{array}{l}\frac{5}{{11}} - \frac{1}{6} = \frac{{30}}{{66}} - \frac{{11}}{{66}}\\ = \frac{{19}}{{66}}\end{array}\)

\(\begin{array}{l}\frac{4}{9} - \frac{2}{{13}} = \frac{{52}}{{117}} - \frac{{18}}{{117}}\\ = \frac{{34}}{{117}}\end{array}\)

\(\begin{array}{l}\frac{6}{7} - \frac{3}{{14}} = \frac{{12}}{{14}} - \frac{3}{{14}}\\ = \frac{9}{{14}}\end{array}\)

\(\begin{array}{l}\frac{5}{{12}} - \frac{1}{8} = \frac{{10}}{{24}} - \frac{3}{{24}}\\ = \frac{7}{{24}}\end{array}\)

\(\begin{array}{l}\frac{3}{4} - \frac{1}{{15}} = \frac{{45}}{{60}} - \frac{4}{{60}}\\ = \frac{{41}}{{60}}\end{array}\)

\(\begin{array}{l}\frac{7}{{10}} - \frac{2}{5} = \frac{7}{{10}} - \frac{4}{{10}}\\ = \frac{3}{{10}}\end{array}\)

\(\begin{array}{l}\frac{8}{9} - \frac{3}{7} = \frac{{56}}{{63}} - \frac{{27}}{{63}}\\ = \frac{{29}}{{63}}\end{array}\)

\(\begin{array}{l}\frac{5}{{13}} - \frac{1}{4} = \frac{{20}}{{52}} - \frac{{13}}{{52}}\\ = \frac{7}{{52}}\end{array}\)

\(\begin{array}{l}\frac{4}{5} - \frac{2}{{11}} = \frac{{44}}{{55}} - \frac{{10}}{{55}}\\ = \frac{{34}}{{55}}\end{array}\)

\(\begin{array}{l}\frac{7}{{12}} - \frac{3}{8} = \frac{{14}}{{24}} - \frac{9}{{24}}\\ = \frac{5}{{24}}\end{array}\)

\[\begin{array}{l}\frac{6}{{11}} - \frac{2}{7} = \frac{{42}}{{77}} - \frac{{22}}{{77}}\\ = \frac{{20}}{{77}}\end{array}\]

\(\begin{array}{l}\frac{3}{{10}} - \frac{1}{9} = \frac{{27}}{{90}} - \frac{{10}}{{90}}\\ = \frac{{17}}{{90}}\end{array}\)

\(\begin{array}{l}\frac{5}{6} - \frac{2}{{13}} = \frac{{65}}{{78}} - \frac{{12}}{{78}}\\ = \frac{{53}}{{78}}\end{array}\)

\[\begin{array}{l}\frac{4}{7} - \frac{1}{5} = \frac{{20}}{{35}} - \frac{7}{{35}}\\ = \frac{{13}}{{35}}\end{array}\]

\(\begin{array}{l}\frac{7}{9} - \frac{3}{{11}} = \frac{{77}}{{99}} - \frac{{27}}{{99}}\\ = \frac{{50}}{{99}}\end{array}\)

\(\begin{array}{l}\frac{5}{8} - \frac{2}{{15}} = \frac{{75}}{{120}} - \frac{{16}}{{120}}\\ = \frac{{59}}{{120}}\end{array}\)

\(\begin{array}{l}\frac{3}{4} - \frac{1}{7} = \frac{{21}}{{28}} - \frac{4}{{28}}\\ = \frac{{17}}{{14}}\end{array}\)

\(\begin{array}{l}\frac{6}{{13}} - \frac{2}{9} = \frac{{54}}{{117}} - \frac{{26}}{{117}}\\ = \frac{{28}}{{117}}\end{array}\)

\(\begin{array}{l}\frac{4}{5} - \frac{3}{{16}} = \frac{{64}}{{80}} - \frac{{15}}{{80}}\\ = \frac{{49}}{{80}}\end{array}\)

\(\begin{array}{l}\frac{7}{{10}} - \frac{1}{6} = \frac{{21}}{{30}} - \frac{5}{{30}}\\ = \frac{{16}}{{30}} = \frac{8}{{15}}\end{array}\)

\(\begin{array}{l}\frac{5}{9} - \frac{2}{7} = \frac{{35}}{{63}} - \frac{{18}}{{63}}\\ = \frac{{17}}{{63}}\end{array}\)

\(\begin{array}{l}\frac{3}{8} - \frac{1}{{12}} = \frac{9}{{24}} - \frac{2}{{24}}\\ = \frac{7}{{24}}\end{array}\)

\(\begin{array}{l}\frac{4}{{11}} - \frac{1}{9} = \frac{{36}}{{99}} - \frac{{11}}{{99}}\\ = \frac{{25}}{{99}}\end{array}\)

\(\begin{array}{l}\frac{6}{7} - \frac{3}{{10}} = \frac{{60}}{{70}} - \frac{{21}}{{70}}\\ = \frac{{39}}{{70}}\end{array}\)

\(\begin{array}{l}\frac{5}{{12}} - \frac{1}{5} = \frac{{25}}{{60}} - \frac{{12}}{{60}}\\ = \frac{{13}}{{60}}\end{array}\)

\(\begin{array}{l}\frac{7}{{13}} - \frac{2}{{11}} = \frac{{77}}{{143}} - \frac{{26}}{{143}}\\ = \frac{{51}}{{143}}\end{array}\)

\(\begin{array}{l}\frac{4}{9} - \frac{1}{{10}} = \frac{{40}}{{90}} - \frac{9}{{90}}\\ = \frac{{31}}{{90}}\end{array}\)

\(\begin{array}{l}\frac{5}{6} - \frac{3}{{14}} = \frac{{35}}{{42}} - \frac{9}{{42}}\\ = \frac{{26}}{{42}} = \frac{{13}}{{21}}\end{array}\)

\(\begin{array}{l}\frac{3}{5} - \frac{1}{{13}} = \frac{{39}}{{65}} - \frac{5}{{65}}\\ = \frac{{34}}{{65}}\end{array}\)

\(\begin{array}{l}\frac{7}{8} - \frac{2}{9} = \frac{{63}}{{72}} - \frac{{16}}{{72}}\\ = \frac{{47}}{{72}}\end{array}\)

\(\begin{array}{l}\frac{4}{7} - \frac{1}{{11}} = \frac{{44}}{{77}} - \frac{7}{{77}}\\ = \frac{{37}}{{77}}\end{array}\)

\(\begin{array}{l}\frac{2}{3} - \frac{7}{{12}} = \frac{{85}}{{153}} - \frac{{27}}{{153}}\\ = \frac{{58}}{{153}}\end{array}\)

\(\begin{array}{l}\frac{3}{4} - \frac{2}{{13}} = \frac{{39}}{{52}} - \frac{8}{{52}}\\ = \frac{{31}}{{52}}\end{array}\)

\(\begin{array}{l}\frac{6}{{11}} - \frac{1}{8} = \frac{{48}}{{88}} - \frac{{11}}{{88}}\\ = \frac{{37}}{{88}}\end{array}\)

\(\begin{array}{l}\frac{5}{7} - \frac{2}{{15}} = \frac{{75}}{{105}} - \frac{{14}}{{105}}\\ = \frac{{61}}{{105}}\end{array}\)

\(\begin{array}{l}\frac{4}{5} - \frac{1}{{12}} = \frac{{48}}{{60}} - \frac{5}{{60}}\\ = \frac{{43}}{{60}}\end{array}\)

\(\begin{array}{l}\frac{5}{{12}} - \frac{2}{{11}} = \frac{{55}}{{132}} - \frac{{24}}{{132}}\\ = \frac{{31}}{{132}}\end{array}\)

\(\begin{array}{l}\frac{7}{{11}} - \frac{1}{5} = \frac{{35}}{{55}} - \frac{{11}}{{55}}\\ = \frac{{24}}{{55}}\end{array}\)

\(\begin{array}{l}\frac{6}{7} - \frac{3}{{13}} = \frac{{78}}{{91}} - \frac{{21}}{{91}}\\ = \frac{{57}}{{91}}\end{array}\)

\[\begin{array}{l}\frac{4}{5} - \frac{1}{8} = \frac{{32}}{{40}} - \frac{5}{{40}}\\ = \frac{{27}}{{40}}\end{array}\]

\(\begin{array}{l}\frac{6}{{13}} - \frac{1}{9} = \frac{{54}}{{117}} - \frac{{13}}{{117}}\\ = \frac{{41}}{{117}}\end{array}\)

\(\begin{array}{l}\frac{5}{8} - \frac{2}{9} = \frac{{45}}{{72}} - \frac{{16}}{{72}}\\ = \frac{{29}}{{72}}\end{array}\)

\(\begin{array}{l}\frac{7}{9} - \frac{1}{6} = \frac{{14}}{{18}} - \frac{3}{{18}}\\ = \frac{{11}}{{18}}\end{array}\)

\(\begin{array}{l}\frac{4}{7} - \frac{2}{{14}} = \frac{{60}}{{105}} - \frac{{14}}{{105}}\\ = \frac{{46}}{{105}}\end{array}\)

\(\begin{array}{l}\frac{5}{{11}} - \frac{3}{8} = \frac{{40}}{{88}} - \frac{{33}}{{88}}\\ = \frac{7}{{88}}\end{array}\)

\(\begin{array}{l}\frac{6}{{11}} - \frac{3}{{14}} = \frac{{84}}{{154}} - \frac{{33}}{{154}}\\ = \frac{{51}}{{154}}\end{array}\)

\(\begin{array}{l}\frac{7}{{12}} - \frac{3}{{14}} = \frac{{49}}{{84}} - \frac{{18}}{{84}}\\ = \frac{{31}}{{84}}\end{array}\)

\(\begin{array}{l}\frac{4}{5} - \frac{2}{{13}} = \frac{{52}}{{65}} - \frac{{10}}{{65}}\\ = \frac{{42}}{{65}}\end{array}\)

\(\begin{array}{l}\frac{6}{7} - \frac{1}{9} = \frac{{54}}{{63}} - \frac{7}{{63}}\\ = \frac{{47}}{{63}}\end{array}\)

\(\begin{array}{l}\frac{5}{7} - \frac{3}{8} = \frac{{40}}{{56}} - \frac{{21}}{{56}}\\ = \frac{{19}}{{56}}\end{array}\)

\[\begin{array}{l}\frac{4}{9} - \frac{1}{{10}} = \frac{{40}}{{90}} - \frac{9}{{90}}\\ = \frac{{31}}{{90}}\end{array}\]

\(\begin{array}{l}\frac{7}{{10}} - \frac{2}{7} = \frac{{49}}{{70}} - \frac{{20}}{{70}}\\ = \frac{{29}}{{70}}\end{array}\)

\(\begin{array}{l}\frac{5}{9} - \frac{2}{7} = \frac{{35}}{{63}} - \frac{{18}}{{63}}\\ = \frac{{17}}{{63}}\end{array}\)

\[\begin{array}{l}\frac{6}{{13}} - \frac{2}{5} = \frac{{30}}{{65}} - \frac{{26}}{{65}}\\ = \frac{4}{{65}}\end{array}\]

\(\begin{array}{l}\frac{4}{{11}} - \frac{1}{6} = \frac{{24}}{{66}} - \frac{{11}}{{66}}\\ = \frac{{13}}{{66}}\end{array}\)

\(\begin{array}{l}\frac{7}{{10}} - \frac{3}{{11}} = \frac{{77}}{{110}} - \frac{{30}}{{110}}\\ = \frac{{47}}{{110}}\end{array}\)

\(\begin{array}{l}\frac{5}{6} - \frac{3}{{14}} = \frac{{35}}{{42}} - \frac{9}{{42}}\\ = \frac{{26}}{{42}} = \frac{{13}}{{21}}\end{array}\)

\(\begin{array}{l}\frac{7}{{12}} - \frac{2}{{11}} = \frac{{77}}{{132}} - \frac{{24}}{{132}}\\ = \frac{{53}}{{132}}\end{array}\)

\(\begin{array}{l}\frac{5}{9} - \frac{1}{8} = \frac{{40}}{{72}} - \frac{9}{{72}}\\ = \frac{{31}}{{72}}\end{array}\)

\(\begin{array}{l}\frac{6}{7} - \frac{1}{{10}} = \frac{{60}}{{70}} - \frac{7}{{70}}\\ = \frac{{53}}{{70}}\end{array}\)

\(\begin{array}{l}\frac{5}{{11}} - \frac{1}{8} = \frac{{40}}{{88}} - \frac{{11}}{{88}}\\ = \frac{{29}}{{88}}\end{array}\)

\(\begin{array}{l}\frac{7}{{10}} - \frac{2}{9} = \frac{{63}}{{90}} - \frac{{20}}{{90}}\\ = \frac{{43}}{{90}}\end{array}\)

\(\begin{array}{l}\frac{5}{{12}} - \frac{2}{{13}} = \frac{{65}}{{156}} - \frac{{24}}{{156}}\\ = \frac{{41}}{{156}}\end{array}\)

\(\begin{array}{l}\frac{4}{{11}} - \frac{1}{7} = \frac{{28}}{{77}} - \frac{{11}}{{77}}\\ = \frac{{17}}{{77}}\end{array}\)

\(\begin{array}{l}\frac{7}{9} - \frac{2}{5} = \frac{{35}}{{45}} - \frac{{18}}{{45}}\\ = \frac{{17}}{{45}}\end{array}\)

\(\begin{array}{l}\frac{5}{8} - \frac{3}{{11}} = \frac{{55}}{{88}} - \frac{{24}}{{88}}\\ = \frac{{31}}{{88}}\end{array}\)

\(\begin{array}{l}\frac{6}{{13}} - \frac{1}{5} = \frac{{30}}{{65}} - \frac{{13}}{{65}}\\ = \frac{{17}}{{65}}\end{array}\)

\(\begin{array}{l}\frac{7}{{11}} - \frac{3}{8} = \frac{{56}}{{88}} - \frac{{33}}{{88}}\\ = \frac{{23}}{{88}}\end{array}\)

\(\begin{array}{l}\frac{4}{5} - \frac{1}{6} = \frac{{24}}{{30}} - \frac{5}{{30}}\\ = \frac{{19}}{{30}}\end{array}\)

\(\begin{array}{l}\frac{7}{{12}} - \frac{3}{8} = \frac{{14}}{{24}} - \frac{9}{{24}}\\ = \frac{5}{{24}}\end{array}\)

\(\begin{array}{l}\frac{3}{4} - \frac{2}{{11}} = \frac{{33}}{{44}} - \frac{8}{{44}}\\ = \frac{{25}}{{44}}\end{array}\)

\(\begin{array}{l}\frac{5}{7} - \frac{1}{4} = \frac{{20}}{{28}} - \frac{7}{{28}}\\ = \frac{{13}}{{28}}\end{array}\)

\(\begin{array}{l}\frac{6}{{11}} - \frac{2}{{13}} = \frac{{66}}{{143}} - \frac{{22}}{{143}}\\ = \frac{{44}}{{143}}\end{array}\)

\[\begin{array}{l}\frac{4}{5} - \frac{3}{{13}} = \frac{{52}}{{65}} - \frac{{15}}{{65}}\\ = \frac{{37}}{{65}}\end{array}\]

\(\begin{array}{l}\frac{5}{7} - \frac{2}{{11}} = \frac{{55}}{{77}} - \frac{{14}}{{77}}\\ = \frac{{41}}{{77}}\end{array}\)

\(\begin{array}{l}\frac{7}{{10}} - \frac{1}{6} = \frac{{21}}{{30}} - \frac{5}{{30}}\\ = \frac{{16}}{{30}} = \frac{8}{{15}}\end{array}\)

\(\begin{array}{l}\frac{8}{{17}} - \frac{2}{8} = \frac{{64}}{{136}} - \frac{{34}}{{136}}\\ = \frac{{30}}{{136}} = \frac{{15}}{{68}}\end{array}\)

\(\begin{array}{l}\frac{5}{{19}} - \frac{1}{4} = \frac{{20}}{{76}} - \frac{{19}}{{76}}\\ = \frac{1}{{76}}\end{array}\)

\(\begin{array}{l}\frac{{10}}{{23}} - \frac{1}{5} = \frac{{50}}{{115}} - \frac{{23}}{{115}}\\ = \frac{{27}}{{115}}\end{array}\)

\[\begin{array}{l}\frac{6}{{25}} - \frac{1}{7} = \frac{{42}}{{175}} - \frac{{25}}{{175}}\\ = \frac{{17}}{{175}}\end{array}\]

\(\begin{array}{l}\frac{8}{{29}} - \frac{3}{8} = \frac{{80}}{{232}} - \frac{{58}}{{232}}\\ = \frac{{22}}{{232}} = \frac{{11}}{{116}}\end{array}\)

\(\begin{array}{l}\frac{7}{{16}} - \frac{2}{9} = \frac{{63}}{{144}} - \frac{{32}}{{144}}\\ = \frac{{31}}{{144}}\end{array}\)

\(\begin{array}{l}\frac{5}{{21}} - \frac{1}{6} = \frac{{10}}{{42}} - \frac{7}{{42}}\\ = \frac{3}{{42}} = \frac{1}{{14}}\end{array}\)

\(\begin{array}{l}\frac{9}{{26}} - \frac{3}{{10}} = \frac{{45}}{{130}} - \frac{{39}}{{130}}\\ = \frac{6}{{130}} = \frac{3}{{65}}\end{array}\)

\(\begin{array}{l}\frac{4}{{15}} - \frac{1}{{22}} = \frac{{88}}{{330}} - \frac{{15}}{{330}}\\ = \frac{{73}}{{330}}\end{array}\)

\(\begin{array}{l}\frac{6}{{27}} - \frac{2}{{12}} = \frac{{24}}{{108}} - \frac{{18}}{{108}}\\ = \frac{6}{{108}} = \frac{1}{{18}}\end{array}\)

\(\begin{array}{l}\frac{8}{{31}} - \frac{3}{7} = \frac{{70}}{{217}} - \frac{{62}}{{217}}\\ = \frac{8}{{217}}\end{array}\)

\(\begin{array}{l}\frac{7}{{20}} - \frac{2}{{17}} = \frac{{119}}{{340}} - \frac{{40}}{{340}}\\ = \frac{{79}}{{340}}\end{array}\)

\(\begin{array}{l}\frac{5}{{18}} - \frac{1}{{11}} = \frac{{55}}{{198}} - \frac{{18}}{{198}}\\ = \frac{{37}}{{198}}\end{array}\)

\(\begin{array}{l}\frac{9}{{28}} - \frac{4}{{15}} = \frac{{135}}{{420}} - \frac{{112}}{{420}}\\ = \frac{{23}}{{420}}\end{array}\)

\[\begin{array}{l}\frac{6}{{19}} - \frac{2}{{13}} = \frac{{114}}{{247}} - \frac{{38}}{{247}}\\ = \frac{{76}}{{247}}\end{array}\]

\(\begin{array}{l}\frac{8}{{25}} - \frac{3}{{16}} = \frac{{128}}{{400}} - \frac{{75}}{{400}}\\ = \frac{{53}}{{400}}\end{array}\)

\[\begin{array}{l}\frac{7}{{22}} - \frac{2}{9} = \frac{{63}}{{198}} - \frac{{44}}{{198}}\\ = \frac{{19}}{{198}}\end{array}\]

\[\begin{array}{l}\frac{5}{{24}} - \frac{1}{{10}} = \frac{{25}}{{120}} - \frac{{12}}{{120}}\\ = \frac{{13}}{{120}}\end{array}\]

\(\begin{array}{l}\frac{9}{{29}} - \frac{4}{{17}} = \frac{{153}}{{493}} - \frac{{116}}{{493}}\\ = \frac{{37}}{{493}}\end{array}\)

\(\begin{array}{l}\frac{6}{{23}} - \frac{2}{{14}} = \frac{{84}}{{322}} - \frac{{46}}{{322}}\\ = \frac{{38}}{{322}} = \frac{{47}}{{161}}\end{array}\)

\(\begin{array}{l}\frac{8}{{27}} - \frac{3}{{11}} = \frac{{88}}{{297}} - \frac{{81}}{{297}}\\ = \frac{7}{{297}}\end{array}\)

\(\begin{array}{l}\frac{7}{{26}} - \frac{2}{{15}} = \frac{{105}}{{390}} - \frac{{52}}{{390}}\\ = \frac{{53}}{{390}}\end{array}\)

\(\begin{array}{l}\frac{5}{{17}} - \frac{1}{8} = \frac{{40}}{{136}} - \frac{{17}}{{136}}\\ = \frac{{23}}{{136}}\end{array}\)

\(\begin{array}{l}\frac{9}{{31}} - \frac{4}{{18}} = \frac{{162}}{{558}} - \frac{{124}}{{558}} = \frac{{38}}{{558}}\\ = \frac{{19}}{{279}}\end{array}\)

\(\begin{array}{l}\frac{6}{{20}} - \frac{2}{{19}} = \frac{{114}}{{380}} - \frac{{40}}{{380}}\\ = \frac{{74}}{{380}} = \frac{{37}}{{190}}\end{array}\)

\(\begin{array}{l}\frac{8}{{29}} - \frac{3}{{14}} = \frac{{112}}{{406}} - \frac{{87}}{{406}}\\ = \frac{{25}}{{406}}\end{array}\)

\(\begin{array}{l}\frac{7}{{24}} - \frac{2}{{13}} = \frac{{91}}{{312}} - \frac{{48}}{{312}}\\ = \frac{{43}}{{312}}\end{array}\)

\(\begin{array}{l}\frac{5}{{22}} - \frac{1}{9} = \frac{{45}}{{198}} - \frac{{22}}{{198}}\\ = \frac{{23}}{{198}}\end{array}\)

\(\begin{array}{l}\frac{9}{{25}} - \frac{4}{{21}} = \frac{{189}}{{525}} - \frac{{100}}{{525}}\\ = \frac{{89}}{{525}}\end{array}\)

\(\begin{array}{l}\frac{6}{{16}} - \frac{2}{7} = \frac{{42}}{{112}} - \frac{{32}}{{112}}\\ = \frac{{10}}{{112}} = \frac{5}{{56}}\end{array}\)

\(\begin{array}{l}\frac{8}{{23}} - \frac{3}{{17}} = \frac{{136}}{{391}} - \frac{{69}}{{391}}\\ = \frac{{67}}{{391}}\end{array}\)

\(\begin{array}{l}\frac{7}{{19}} - \frac{2}{{10}} = \frac{{56}}{{190}} - \frac{{33}}{{190}}\\ = \frac{{23}}{{190}}\end{array}\)

\(\begin{array}{l}\frac{5}{{28}} - \frac{1}{{12}} = \frac{{15}}{{84}} - \frac{7}{{84}}\\ = \frac{8}{{84}} = \frac{2}{{21}}\end{array}\)

\(\begin{array}{l}\frac{9}{{27}} - \frac{4}{{14}} = \frac{{126}}{{378}} - \frac{{108}}{{378}}\\ = \frac{{18}}{{378}} = \frac{1}{{21}}\end{array}\)

\(\begin{array}{l}\frac{6}{{29}} - \frac{2}{{15}} = \frac{{90}}{{435}} - \frac{{58}}{{435}}\\ = \frac{{32}}{{435}}\end{array}\)

\(\begin{array}{l}\frac{8}{{21}} - \frac{3}{{16}} = \frac{{128}}{{336}} - \frac{{63}}{{336}}\\ = \frac{{65}}{{336}}\end{array}\)

\(\begin{array}{l}\frac{7}{{30}} - \frac{2}{{11}} = \frac{{77}}{{330}} - \frac{{60}}{{330}}\\ = \frac{{17}}{{330}}\end{array}\)

\[\begin{array}{l}\frac{5}{{26}} - \frac{1}{{13}} = \frac{5}{{26}} - \frac{2}{{26}}\\ = \frac{3}{{26}}\end{array}\]

\(\begin{array}{l}\frac{9}{{22}} - \frac{4}{{19}} = \frac{{171}}{{418}} - \frac{{88}}{{418}}\\ = \frac{{83}}{{418}}\end{array}\)

\(\begin{array}{l}\frac{6}{{17}} - \frac{2}{9} = \frac{{54}}{{153}} - \frac{{34}}{{153}}\\ = \frac{{20}}{{153}}\end{array}\)