5.357 Сократите дроби: 66 9 9 a) 10' 18' 15' 24' 2 3 30 7 б) 12' 15' 6' 42' 12 99 5 20 B) 60' 22' 100' 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) $$\frac{12}{60} = \frac{1}{5}$$, $$\frac{99}{22} = \frac{9}{2}$$, $$\frac{5}{100} = \frac{1}{20}$$, $$\frac{20}{1000} = \frac{1}{50}$$

Ответ: а) $$\frac{3}{5}$$, $$\frac{1}{3}$$, $$\frac{3}{5}$$, $$\frac{3}{8}$$; б) $$\frac{1}{6}$$, $$\frac{1}{5}$$, $$5$$, $$\frac{1}{6}$$; в) $$\frac{1}{5}$$, $$\frac{9}{2}$$, $$\frac{1}{20}$$, $$\frac{1}{50}$$