2. Выполните действие: а) \(\frac{6}{7} - \frac{1}{14}\) б) \(\frac{2}{9} + 5\frac{1}{6}\) в) \(\frac{1}{20} \cdot 8\) г) \(\frac{7}{10} : 7\)

Решение:

1. \( \frac{6}{7} - \frac{1}{14} = \frac{12}{14} - \frac{1}{14} = \frac{11}{14} \)
2. \( \frac{2}{9} + 5\frac{1}{6} = \frac{2}{9} + \frac{31}{6} = \frac{4}{18} + \frac{93}{18} = \frac{97}{18} = 5\frac{7}{18} \)
3. \( \frac{1}{20} \cdot 8 = \frac{8}{20} = \frac{2}{5} \)
4. \( \frac{7}{10} : 7 = \frac{7}{10} \cdot \frac{1}{7} = \frac{1}{10} \)

Ответ: а) \(\frac{11}{14}\); б) \(5\frac{7}{18}\); в) \(\frac{2}{5}\); г) \(\frac{1}{10}\).