Упражнение 5.357 - ГДЗ Математика 5 класс Виленкин

а)

• $\frac{6}{10} = \frac{6:2}{10:2} = \frac{3}{5}$.
• $\frac{6}{18} = \frac{6:6}{18:6} = \frac{1}{3}$.
• $\frac{9}{15} = \frac{9:3}{15:3} = \frac{3}{5}$.
• $\frac{9}{24} = \frac{9:3}{24:3} = \frac{3}{8}$.

б)

• $\frac{2}{12} = \frac{2:2}{12:2} = \frac{1}{6}$.
• $\frac{3}{15} = \frac{3:3}{15:3} = \frac{1}{5}$.
• $\frac{30}{6} = \frac{30:6}{6:6} = \frac{5}{1} = 5$.
• $\frac{7}{42} = \frac{7:7}{42:7} = \frac{1}{6}$.

в)

• $\frac{12}{60} = \frac{12:12}{60:12} = \frac{1}{5}$.
• $\frac{99}{22} = \frac{99:11}{22:11} = \frac{9}{2} = 4\frac{1}{2}$.
• $\frac{5}{100} = \frac{5:5}{100:5} = \frac{1}{20}$.
• $\frac{20}{1000} = \frac{20:20}{1000:20} = \frac{1}{50}$.

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) $\frac{1}{5}; 4\frac{1}{2}; \frac{1}{20}; \frac{1}{50}$.