Вычислите: 1) 18 : 37; 2) 12 : 3/4; 3) 2/9 : 9; 4) 7/12 : 49/60; 5) 3 3/5 : 24/25.

1. \(18:37=\frac{18}{37}\).
2. \(12:\frac{3}{4}=12\cdot\frac{4}{3}=16\).
3. \(\frac{2}{9}:9=\frac{2}{9}\cdot\frac{1}{9}=\frac{2}{81}\).
4. \(\frac{7}{12}:\frac{49}{60}=\frac{7}{12}\cdot\frac{60}{49}=\frac{5}{7}\).
5. \(3\frac{3}{5}:\frac{24}{25}=\frac{18}{5}\cdot\frac{25}{24}=\frac{15}{4}=3\frac{3}{4}\).

Ответ: 1) \(\frac{18}{37}\); 2) \(16\); 3) \(\frac{2}{81}\); 4) \(\frac{5}{7}\); 5) \(3\frac{3}{4}\).