Ответ:
- \(1-\frac{7}{13}=\frac{13}{13}-\frac{7}{13}=\frac{6}{13}\).
- \(12-\frac{4}{9}=11+\frac{9}{9}-\frac{4}{9}=11\frac{5}{9}\).
- \(10-2\frac{20}{29}=9\frac{29}{29}-2\frac{20}{29}=7\frac{9}{29}\).
- \(2-1\frac{9}{17}=1-\frac{9}{17}=\frac{8}{17}\).
Ответ: а) \(\frac{6}{13}\); б) \(11\frac{5}{9}\); в) \(7\frac{9}{29}\); г) \(\frac{8}{17}\).
