Вариант 4. 1. Выполните умножение: 1) \(\frac{8}{25}\cdot\frac{5}{56}\); 2) \(\frac{5}{6}\cdot\frac{7}{9}\); 3) \(\frac{37}{88}\cdot\frac{24}{37}\); 4) \(\frac{27}{56}\cdot\frac{35}{81}\).

1. \(\frac{8}{25}\cdot\frac{5}{56}=\frac{1}{25}\cdot\frac{1}{7}=\frac{1}{175}\).
2. \(\frac{5}{6}\cdot\frac{7}{9}=\frac{35}{54}\).
3. \(\frac{37}{88}\cdot\frac{24}{37}=\frac{24}{88}=\frac{3}{11}\).
4. \(\frac{27}{56}\cdot\frac{35}{81}=\frac{1}{3}\cdot\frac{5}{8}=\frac{5}{24}\).

Ответ: 1) \(\frac{1}{175}\); 2) \(\frac{35}{54}\); 3) \(\frac{3}{11}\); 4) \(\frac{5}{24}\).