1. Сократите: 60/84, 75/105, 108/144.

1. \(\frac{60}{84}=\frac{60\div12}{84\div12}=\frac{5}{7}\).
2. \(\frac{75}{105}=\frac{75\div15}{105\div15}=\frac{5}{7}\).
3. \(\frac{108}{144}=\frac{108\div36}{144\div36}=\frac{3}{4}\).

Ответ: \(\frac{5}{7},\ \frac{5}{7},\ \frac{3}{4}\).