Tìm x, biết: X : $\frac{2}{3}$ = $\frac{4}{7}$

Question

$\begin{array}{l} x : \frac{2}{3} = \frac{4}{7} \\ x = \frac{4}{7} \times \frac{2}{3} \\ x = \frac{8}{21} \end{array}$

Answer 1

Trả lời:

Giải bởi Vietjack

$\begin{array}{l} x : \frac{2}{3} = \frac{4}{7} \\ x = \frac{4}{7} \times \frac{2}{3} \\ x = \frac{8}{21} \end{array}$

Tìm x, biết: X : 23= 47