Question

Выполните действие 3 целых 3\4*2\5 - 3 целых 6\25*5\27

Answer 1

$3 \frac{3}{4}* \frac{2}{5}-3 \frac{6}{25}* \frac{5}{27} = \frac{15}{4}* \frac{2}{5}- \frac{81}{25}* \frac{5}{27}=\frac{3}{2}- \frac{3}{5}= \frac{15}{10}- \frac{6}{10}=\frac{9}{10}=0,9$