2. Вычислите: 1) 1 − 6/17; 2) 4 − 3/26; 3) 6 − 1 5/6; 4) 9 − 3 7/22.

1. \(1-\frac{6}{17}=\frac{17}{17}-\frac{6}{17}=\frac{11}{17}\).
2. \(4-\frac{3}{26}=\frac{104}{26}-\frac{3}{26}=\frac{101}{26}=3\frac{23}{26}\).
3. \(6-1\frac{5}{6}=4\frac{6}{6}-1\frac{5}{6}=3\frac{1}{6}\).
4. \(9-3\frac{7}{22}=8\frac{22}{22}-3\frac{7}{22}=5\frac{15}{22}\).

Ответ: 1) \(\frac{11}{17}\); 2) \(3\frac{23}{26}\); 3) \(3\frac{1}{6}\); 4) \(5\frac{15}{22}\).