Question

Помогите решить! - 5\1- 2\5= ?

Answer 1

5\1-2\5=25\5-2\5=23\5=4 3\5

Answer 2

$-\frac{5}{1}-\frac{2}{5}=-\frac{25}{5}-\frac{2}{5}=-\frac{27}{5}=-5,4$

Вариант полегче:
$-\frac{5}{1}-\frac{2}{5}=-5-0,4=-5,4$