Question

Найти значение выражения 11 2/5 - 3 1/5 - x равно 2 4/5

Answer 1

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

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

$11 \frac{2}{5} - 6 = x$

$10 \frac{7}{5} - 5 \frac{5}{5} = x$

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

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