1. Выполните действие: a) 1-+\(\frac{7}{14}\)\(\frac{2}{6}\); 6)\(\frac{5}{6}\)-\(\frac{2}{3}\); в) 2,6\(\cdot\) 4; г) 6\(\frac{4}{9}\)+2.

Решение:

1. \(1\frac{7}{14} + \frac{2}{6} = 1\frac{1}{2} + \frac{1}{3} = \frac{3}{2} + \frac{1}{3} = \frac{9+2}{6} = \frac{11}{6}\)
2. \(\frac{5}{6} - \frac{2}{3} = \frac{5}{6} - \frac{4}{6} = \frac{1}{6}\)
3. \(2,6 \cdot 4 = 10,4\)
4. \(6\frac{4}{9} + 2 = 8\frac{4}{9}\)

Ответ: а) \(\frac{11}{6}\); б) \(\frac{1}{6}\); в) 10,4; г) \(8\frac{4}{9}\).