Question

:( 11 целых 2/5 - 3 целых 1/5 - x = 2 целых 4/5 3 целых 2/7 - 2 целых 4/7 + x = 2 целых 1/7

Answer 1

$11 \frac{2}{5}-3 \frac{1}{5}-x=2 \frac{4}{5}$
$8 \frac{1}{5}-x=2 \frac{4}{5}$
$x=8 \frac{1}{5}-2 \frac{4}{5}$
$x=5 \frac{2}{5}$

$3 \frac{2}{7}-2 \frac{4}{7}+x=2 \frac{1}{7}$
$\frac{5}{7}+x=2 \frac{1}{7}$
$x=2 \frac{1}{7}- \frac{5}{7}$
$x=1 \frac{3}{7}$