Решение:
- \( \frac{1}{3} + \frac{2}{6} = \frac{1}{3} + \frac{1}{3} = \frac{2}{3} \)
- \( \frac{4}{7} - \frac{2}{7} = \frac{4-2}{7} = \frac{2}{7} \)
- \( \frac{3}{5} \times \frac{5}{6} = \frac{3 \times 5}{5 \times 6} = \frac{15}{30} = \frac{1}{2} \)
- \( \frac{3}{5} \div \frac{1}{6} = \frac{3}{5} \times \frac{6}{1} = \frac{18}{5} = 3\frac{3}{5} \)
Ответ:
а) \(\frac{2}{3}\)
б) \(\frac{2}{7}\)
в) \(\frac{1}{2}\)
г) \(3\frac{3}{5}\)