Ответ:

Сокращаем каждую дробь на наибольший общий делитель числителя и знаменателя.

  1. \(\frac{42}{24}=\frac{42:6}{24:6}=\frac{7}{4}\); \(\frac{35}{77}=\frac{35:7}{77:7}=\frac{5}{11}\); \(\frac{48}{60}=\frac{48:12}{60:12}=\frac{4}{5}\); \(\frac{72}{96}=\frac{72:24}{96:24}=\frac{3}{4}\); \(\frac{56}{70}=\frac{56:14}{70:14}=\frac{4}{5}\).
  2. \(\frac{72}{90}=\frac{72:18}{90:18}=\frac{4}{5}\); \(\frac{60}{105}=\frac{60:15}{105:15}=\frac{4}{7}\); \(\frac{45}{150}=\frac{45:15}{150:15}=\frac{3}{10}\); \(\frac{84}{120}=\frac{84:12}{120:12}=\frac{7}{10}\); \(\frac{96}{100}=\frac{96:4}{100:4}=\frac{24}{25}\).

Ответ: 1) \(\frac{7}{4},\frac{5}{11},\frac{4}{5},\frac{3}{4},\frac{4}{5}\); 2) \(\frac{4}{5},\frac{4}{7},\frac{3}{10},\frac{7}{10},\frac{24}{25}\).