Ответ:

  1. \(4\frac{14}{19}-2\frac{5}{19}=2\frac{9}{19}\).
  2. \(8\frac{7}{10}-5=3\frac{7}{10}\).
  3. \(12-\frac{7}{18}=11\frac{11}{18}\).
  4. \(11-3\frac{5}{12}=7\frac{7}{12}\).
  5. \(8\frac{7}{15}-3\frac{11}{15}=7\frac{22}{15}-3\frac{11}{15}=4\frac{11}{15}\).
  6. \(10\frac{9}{14}-3\frac{9}{14}=7\).

Ответ: а) \(2\frac{9}{19}\); б) \(3\frac{7}{10}\); в) \(11\frac{11}{18}\); г) \(7\frac{7}{12}\); д) \(4\frac{11}{15}\); е) \(7\).