Ответ:
- \(9\frac{11}{12}-3\frac{10}{12}=6\frac{1}{12}\).
- \(9\frac{11}{15}-4=5\frac{11}{15}\).
- \(11-\frac{5}{18}=10\frac{13}{18}\).
- \(21-8\frac{7}{15}=12\frac{8}{15}\).
- \(8\frac{3}{17}-4\frac{11}{17}=3\frac{9}{17}\).
- \(10\frac{15}{16}-3\frac{15}{16}=7\).
Ответ: а) \(6\frac{1}{12}\); б) \(5\frac{11}{15}\); в) \(10\frac{13}{18}\); г) \(12\frac{8}{15}\); д) \(3\frac{9}{17}\); е) \(7\).
