№1. Вычислите: 1) \(\left(\frac{1}{8}+\frac{10}{18}\right)\cdot\frac{9}{35}\); 2) \(9,5:\left(6+\frac{2}{3}\right)\).

1)

\(\frac{10}{18}=\frac{5}{9}\).

\(\frac{1}{8}+\frac{5}{9}=\frac{9}{72}+\frac{40}{72}=\frac{49}{72}\).

\(\frac{49}{72}\cdot\frac{9}{35}=\frac{49}{8\cdot35}=\frac{7}{40}\).

2)

\(9,5=\frac{19}{2}\), а \(6+\frac{2}{3}=\frac{20}{3}\).

\(\frac{19}{2}:\frac{20}{3}=\frac{19}{2}\cdot\frac{3}{20}=\frac{57}{40}=1,425\).

Ответ: 1) \(\frac{7}{40}\); 2) \(1,425\).