Вычислите. \(1\frac{1}{7}\) \(5\frac{2}{7}\) \(10-8\frac{6}{7}\) \(\frac{2}{7}+\frac{6}{7}\) \(10\frac{1}{7}-9\) \(4\frac{2}{7}-3\frac{1}{7}\) \(10-4\frac{5}{7}\) \(9\frac{1}{7}-3\frac{6}{7}\) \(14\frac{6}{7}-9\frac{4}{7}\) \(3\frac{1}{7}+2\frac{1}{7}\) :