12) $\left(\frac{2}{5}+\frac{13}{15}\right)\cdot6$

Question

$Фото задания: 12) $\left(\frac{2}{5}+\frac{13}{15}\right)\cdot6$$ Фото задания

Accepted Answer

Приведём дроби в скобках к знаменателю 15:

\[\left(\frac{2}{5}+\frac{13}{15}\right)\cdot6=\left(\frac{6}{15}+\frac{13}{15}\right)\cdot6=\frac{19}{15}\cdot6=\frac{38}{5}=7\frac{3}{5}.\]

Ответ: $7\frac{3}{5}$.

12) \(\left(\frac{2}{5}+\frac{13}{15}\right)\cdot6\)