220. Выполните вычитание: а) 14/19 - 2 5/19 б) 8 7/10 - 5 в) 12 - 7/18 г) 11 - 3 5/12 д) 8 7/15 - 3 11/15 е) 10 9/14 - 3 9/14

а) Здесь явно опечатка, т.к. вычитаемое больше уменьшаемого. Предполагаю, что задание \(2\frac{14}{19} - \frac{5}{19}\). Тогда \(2\frac{14}{19} - \frac{5}{19} = 2 \frac{14-5}{19} = 2 \frac{9}{19}\) б) 8 \(\frac{7}{10}\) - 5 = 3 \(\frac{7}{10}\) в) 12 - \(\frac{7}{18}\) = 11 + 1 - \(\frac{7}{18}\) = 11 + \(\frac{18}{18}\) - \(\frac{7}{18}\) = 11 \(\frac{18-7}{18}\) = 11 \(\frac{11}{18}\) г) 11 - 3 \(\frac{5}{12}\) = 8 - \(\frac{5}{12}\) = 7 + 1 - \(\frac{5}{12}\) = 7 + \(\frac{12}{12}\) - \(\frac{5}{12}\) = 7 \(\frac{7}{12}\) д) 8 \(\frac{7}{15}\) - 3 \(\frac{11}{15}\) = 5 \(\frac{7}{15}\) - \(\frac{11}{15}\) = 4 + 1 + \(\frac{7}{15}\) - \(\frac{11}{15}\) = 4 + \(\frac{15}{15}\) + \(\frac{7}{15}\) - \(\frac{11}{15}\) = 4 + \(\frac{22}{15}\) - \(\frac{11}{15}\) = 4 \(\frac{11}{15}\) е) 10 \(\frac{9}{14}\) - 3 \(\frac{9}{14}\) = 7 \(\frac{9-9}{14}\) = 7 \(\frac{0}{14}\) = 7