Question

5/7×X=2/7
Нужно решение

Answer 1

5/7 * х = 2/7,

х = 2/7 : 5/7,

х = 2/7 * 7/5,

х = 2/5,

проверка:

5/7 * 2/5 = 2/7,

2/7 = 2/7

Answer 2

$frac{5}{7} x = frac{2}{7} \ \ x = frac{2}{5} = 0.4$