2. Выполните действия: a) \(\frac{10}{11} - \frac{4}{11} + \frac{3}{11}\); б) \(6 - 2\frac{3}{8}\); в) \(4\frac{5}{9} + 3\frac{8}{9}\); г) \(5\frac{6}{13} - 1\frac{11}{13}\).

a) \(\frac{10}{11} - \frac{4}{11} + \frac{3}{11} = \frac{10 - 4 + 3}{11} = \frac{9}{11}\)

б) \(6 - 2\frac{3}{8} = 5\frac{8}{8} - 2\frac{3}{8} = (5 - 2) + (\frac{8}{8} - \frac{3}{8}) = 3 + \frac{5}{8} = 3\frac{5}{8}\)

в) \(4\frac{5}{9} + 3\frac{8}{9} = (4 + 3) + (\frac{5}{9} + \frac{8}{9}) = 7 + \frac{13}{9} = 7 + 1\frac{4}{9} = 8\frac{4}{9}\)

г) \(5\frac{6}{13} - 1\frac{11}{13} = 4\frac{19}{13} - 1\frac{11}{13} = (4 - 1) + (\frac{19}{13} - \frac{11}{13}) = 3 + \frac{8}{13} = 3\frac{8}{13}\)

Ответ: a) \(\frac{9}{11}\); б) \(3\frac{5}{8}\); в) \(8\frac{4}{9}\); г) \(3\frac{8}{13}\)