№26. Вычислите: 1) 6 5/13 + 2 8/13; 2) 5 4/7 + 3 6/7; 3) 1 − 15/19; 4) 8 − 3 4/9; 5) 7 3/8 − 2 5/8; 6) 14 15/32 − 9 19/32.

1. \(6\frac{5}{13}+2\frac{8}{13}=8+\frac{13}{13}=9\).
2. \(5\frac47+3\frac67=8+\frac{10}{7}=9\frac37\).
3. \(1-\frac{15}{19}=\frac4{19}\).
4. \(8-3\frac49=4\frac59\).
5. \(7\frac38-2\frac58=4\frac68=4\frac34\).
6. \(14\frac{15}{32}-9\frac{19}{32}=4\frac{28}{32}=4\frac78\).

Ответ: 1) 9; 2) \(9\frac37\); 3) \(\frac4{19}\); 4) \(4\frac59\); 5) \(4\frac34\); 6) \(4\frac78\).