Question

вычислите 0,7-1\5-2,6+0,3-2/5 ​

Answer 1

38/3727 eidoejsjeieshsje

Answer 2

Ответ: -2,2.

Решение:

$0,7-\frac{1}{5}-2,6+0,3-\frac{2}{5}=0,7+0,3-2,6-(\frac{1}{5}+\frac{2}{5})=1-2,6-\frac{1+2}{5}=-1,6-\frac{3}{5}=-1\frac{6}{10}-\frac{3}{5}=-1\frac{3}{5}-\frac{3}{5}=-(1\frac{3}{5}+\frac{3}{5})=-1\frac{3+3}{5}=-1\frac{6}{5}=-2\frac{1}{5}=-2,2$