8. $(5\frac{7}{10}\cdot3\frac{1}{7})-(7\frac{1}{3}-4\frac{5}{9}):2\frac{4}{5}$

Question

$Фото задания: 8. $(5\frac{7}{10}\cdot3\frac{1}{7})-(7\frac{1}{3}-4\frac{5}{9}):2\frac{4}{5}$$ Фото задания

Accepted Answer

$5\frac{7}{10}\cdot3\frac{1}{7}=\frac{57}{10}\cdot\frac{22}{7}=\frac{627}{35}$.

$7\frac{1}{3}-4\frac{5}{9}=\frac{22}{3}-\frac{41}{9}=\frac{25}{9}$.

$\frac{25}{9}:2\frac{4}{5}=\frac{25}{9}:\frac{14}{5}=\frac{125}{126}$.

$\frac{627}{35}-\frac{125}{126}=\frac{10661}{630}$.

Ответ: $\frac{10661}{630}$.

8. \((5\frac{7}{10}\cdot3\frac{1}{7})-(7\frac{1}{3}-4\frac{5}{9}):2\frac{4}{5}\)