5.357 Сократите дроби: a) 6/10, 6/18, 9/15, 9/24 б) 2/12, 3/15, 30/6, 7/42 в) 12/60, 99/22, 5/100, 20/1000

a) \( \frac{6}{10} = \frac{3}{5} \), \( \frac{6}{18} = \frac{1}{3} \), \( \frac{9}{15} = \frac{3}{5} \), \( \frac{9}{24} = \frac{3}{8} \) б) \( \frac{2}{12} = \frac{1}{6} \), \( \frac{3}{15} = \frac{1}{5} \), \( \frac{30}{6} = 5 \), \( \frac{7}{42} = \frac{1}{6} \) в) \( \frac{12}{60} = \frac{1}{5} \), \( \frac{99}{22} = \frac{9}{2} = 4 \frac{1}{2} \), \( \frac{5}{100} = \frac{1}{20} \), \( \frac{20}{1000} = \frac{1}{50} \)