№1. Вычислите: 1. (2/9 − 1/12) · 36/5; 2. 10,5 : (7 − 1/2).

1. \(\left(\frac{2}{9}-\frac{1}{12}\right)\cdot\frac{36}{5}=\left(\frac{8}{36}-\frac{3}{36}\right)\cdot\frac{36}{5}=\frac{5}{36}\cdot\frac{36}{5}=1\).

2. \(10,5:\left(7-\frac{1}{2}\right)=10,5:\frac{13}{2}=\frac{21}{2}\cdot\frac{2}{13}=\frac{21}{13}\).

Ответ: 1) 1; 2) \(\frac{21}{13}\).