Tìm x biết \[2\frac{x}{7} = \frac{{75}}{{35}}\]

A. \[1\frac{2}{3}\]

B. \[3\frac{1}{3}\]

C. \[3\frac{1}{4}\]

D. \[1\frac{1}{3}\]

A. \[\frac{{19.20}}{{19 + 20}} = \frac{1}{{19}} + \frac{1}{{20}}\]

B. \[6\frac{{23}}{{11}} = \frac{{6.23 + 11}}{{11}}\]

C. \[6\frac{{23}}{{11}} = \frac{{6.23 + 11}}{{11}}(a \in {N^*})\]

D. \[1\frac{{15}}{{23}} = \frac{{1.23}}{{15}}\]

A. \[\frac{{11}}{6}\]

B. \[\frac{7}{6}\]

C. \[\frac{{13}}{6}\]

D. \[ - \frac{5}{6}\]

A. \[2\frac{1}{3};4\frac{5}{6};6\frac{1}{6};9\frac{1}{2}\]

B. \[2\frac{1}{4};4\frac{1}{6};6\frac{1}{6};9\frac{1}{2}\]

C. \[2\frac{1}{3};4\frac{5}{6};6\frac{5}{6};9\frac{1}{2}\]

D. \[2\frac{1}{3};4\frac{5}{6};6\frac{1}{6};9\frac{1}{6}\]

A. \[13\frac{4}{5}\]

B. \[12\frac{1}{5}\]

C. \[ - 3\frac{4}{5}\]

D. \[10\frac{4}{5}\]

A. \[3\frac{{45}}{{100}}\]  tạ; \[\frac{7}{2}\]  tạ; 365 kg; \[3\frac{3}{4}\]  tạ; \[\frac{{377}}{{100}}\]  tạ.

B. \[3\frac{3}{4}\]  tạ;  \[\frac{{377}}{{100}}\]  tạ; \[\frac{7}{2}\]  tạ; \[3\frac{{45}}{{100}}\]  tạ; 365 kg.

C. \[\frac{{377}}{{100}}\]  tạ; \[3\frac{3}{4}\]  tạ; 365 kg; \[\frac{7}{2}\]  tạ; \[3\frac{{45}}{{100}}\]  tạ.

D. \[3\frac{3}{4}\]  tạ; 365 kg; \[\frac{7}{2}\]  tạ; \[3\frac{{45}}{{100}}\]  tạ; . \[\frac{{377}}{{100}}\]  tạ.

A.\[ - \frac{{21}}{4}\]

B. \[ - \frac{{11}}{4}\]

C. \[ - \frac{{10}}{4}\]

D. \[ - \frac{5}{4}\]