38. Сократите дроби: 10/15; 12/15; 24/48.

1. \(\frac{10}{15}=\frac{10:5}{15:5}=\frac{2}{3}\).
2. \(\frac{12}{15}=\frac{12:3}{15:3}=\frac{4}{5}\).
3. \(\frac{24}{48}=\frac{24:24}{48:24}=\frac{1}{2}\).

Ответ: \(\frac{2}{3};\ \frac{4}{5};\ \frac{1}{2}\).