06. Вычислите: а) \(7\frac{13}{20}+8\frac{7}{20}\); б) \(2\frac{18}{25}+7\frac{8}{25}\); в) \(8\frac{7}{15}-3\frac{11}{15}\); г) \(12-\frac{7}{18}\); д) \(11-3\frac{5}{12}\); е) \(10\frac{9}{14}-3\frac{9}{14}\).

1. \(7\frac{13}{20}+8\frac{7}{20}=15\frac{20}{20}=16\).
2. \(2\frac{18}{25}+7\frac{8}{25}=9\frac{26}{25}=10\frac{1}{25}\).
3. \(8\frac{7}{15}-3\frac{11}{15}=7\frac{22}{15}-3\frac{11}{15}=4\frac{11}{15}\).
4. \(12-\frac{7}{18}=11\frac{18}{18}-\frac{7}{18}=11\frac{11}{18}\).
5. \(11-3\frac{5}{12}=10\frac{12}{12}-3\frac{5}{12}=7\frac{7}{12}\).
6. \(10\frac{9}{14}-3\frac{9}{14}=7\).

Ответ: а) \(16\); б) \(10\frac{1}{25}\); в) \(4\frac{11}{15}\); г) \(11\frac{11}{18}\); д) \(7\frac{7}{12}\); е) \(7\).