38. Сократите дроби \(\frac{35}{42}\), \(\frac{13}{78}\) и \(\frac{75}{100}\).

1. \(\frac{35}{42}=\frac{35:7}{42:7}=\frac{5}{6}\).

2. \(\frac{13}{78}=\frac{13:13}{78:13}=\frac{1}{6}\).

3. \(\frac{75}{100}=\frac{75:25}{100:25}=\frac{3}{4}\).

Ответ: \(\frac{5}{6};\ \frac{1}{6};\ \frac{3}{4}\).