19. Найдите значение выражения \(1\frac{2}{11}+\frac{2}{5}-\frac{37}{55}\).

\(1\frac{2}{11}=\frac{13}{11}=\frac{65}{55}\), \(\frac{2}{5}=\frac{22}{55}\).

\(\frac{65}{55}+\frac{22}{55}-\frac{37}{55}=\frac{50}{55}=\frac{10}{11}\).

Ответ: \(\frac{10}{11}\).