Ответ:
- \(x=\frac{2}{9}:\frac{8}{9}=\frac{2}{9}\cdot\frac{9}{8}=\frac{1}{4}\).
- \(x=1:\frac{5}{9}=\frac{9}{5}\).
- \(x=16:\frac{4}{7}=16\cdot\frac{7}{4}=28\).
- \(x=\frac{4}{5}:5=\frac{4}{25}\).
- Из \(x:\frac{9}{16}=\frac{32}{45}\) получаем \(x=\frac{32}{45}\cdot\frac{9}{16}=\frac{2}{5}\).
- \(\frac{25}{42}:x=\frac{5}{6}\), значит \(x=\frac{25}{42}:\frac{5}{6}=\frac{25}{42}\cdot\frac{6}{5}=\frac{5}{7}\).
Ответ: 1) \(\frac{1}{4}\); 2) \(\frac{9}{5}\); 3) 28; 4) \(\frac{4}{25}\); 5) \(\frac{2}{5}\); 6) \(\frac{5}{7}\).
