Выполняем вычисления:
a) \(3 + 8\frac{5}{12} = 11\frac{5}{12}\)
б) \(10\frac{6}{7} - 3 = 7\frac{6}{7}\)
в) \(4\frac{2}{13} + 5\frac{7}{13} = 9\frac{9}{13}\)
г) \(8\frac{7}{12} - 4\frac{2}{12} = 4\frac{5}{12}\)
д) \(4\frac{8}{11} + 5\frac{7}{11} = 9\frac{15}{11} = 10\frac{4}{11}\)
е) \(7\frac{5}{9} - 2\frac{8}{9} = 6\frac{14}{9} - 2\frac{8}{9} = 4\frac{6}{9} = 4\frac{2}{3}\)
ж) \(7 - 3\frac{3}{8} = 6\frac{8}{8} - 3\frac{3}{8} = 3\frac{5}{8}\)
з) \(10 - 3\frac{7}{15} = 9\frac{15}{15} - 3\frac{7}{15} = 6\frac{8}{15}\)