Ответ:
- \(10\frac{11}{23}-2\frac{8}{23}=8\frac{3}{23}\).
- \(9\frac{2}{27}-3\frac{25}{27}=8\frac{29}{27}-3\frac{25}{27}=5\frac{4}{27}\).
- \(7\frac{21}{29}-6\frac{28}{29}=6\frac{50}{29}-6\frac{28}{29}=\frac{22}{29}\).
- \(16\frac{11}{15}-11\frac{11}{15}=5\).
Ответ: а) \(8\frac{3}{23}\); б) \(5\frac{4}{27}\); в) \(\frac{22}{29}\); г) \(5\).
