222. Выполните действие и сократите результат: 1) \(\frac{16}{63} + \frac{12}{63}\); 2) \(\frac{53}{85} - \frac{19}{85}\); 3) \(8 \frac{34}{81} + 2 \frac{38}{81}\); 4) \(3 \frac{49}{56} - 3 \frac{17}{56}\);

1) \(\frac{16}{63} + \frac{12}{63} = \frac{16+12}{63} = \frac{28}{63} = \frac{4}{9}\) 2) \(\frac{53}{85} - \frac{19}{85} = \frac{53-19}{85} = \frac{34}{85} = \frac{2}{5}\) 3) \(8 \frac{34}{81} + 2 \frac{38}{81} = (8+2) + (\frac{34}{81} + \frac{38}{81}) = 10 + \frac{72}{81} = 10 + \frac{8}{9} = 10 \frac{8}{9}\) 4) \(3 \frac{49}{56} - 3 \frac{17}{56} = (3-3) + (\frac{49}{56} - \frac{17}{56}) = 0 + \frac{32}{56} = \frac{4}{7}\)