220. Выполните вычитание: а) \(4\frac{14}{19} - 2\frac{5}{19}\); б) \(8\frac{7}{10} - 5\); в) \(12 - \frac{7}{18}\); г) \(11 - 3\frac{5}{12}\); д) \(8\frac{7}{15} - 3\frac{11}{15}\); e) \(10\frac{9}{14} - 3\frac{9}{14}\)

а) \(4\frac{14}{19} - 2\frac{5}{19} = (4-2) + \frac{14-5}{19} = 2 + \frac{9}{19} = 2\frac{9}{19}\) б) \(8\frac{7}{10} - 5 = (8-5) + \frac{7}{10} = 3 + \frac{7}{10} = 3\frac{7}{10}\) в) \(12 - \frac{7}{18} = 11 + 1 - \frac{7}{18} = 11 + \frac{18}{18} - \frac{7}{18} = 11\frac{11}{18}\) г) \(11 - 3\frac{5}{12} = 10 + 1 - 3 - \frac{5}{12} = 10 - 3 + \frac{12}{12} - \frac{5}{12} = 7 + \frac{7}{12} = 7\frac{7}{12}\) д) \(8\frac{7}{15} - 3\frac{11}{15} = 7 + \frac{15+7}{15} - 3\frac{11}{15} = 7\frac{22}{15} - 3\frac{11}{15} = 4 + \frac{22-11}{15} = 4 + \frac{11}{15} = 4\frac{11}{15}\) e) \(10\frac{9}{14} - 3\frac{9}{14} = 10 - 3 + \frac{9-9}{14} = 7 + 0 = 7\) 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