Вопрос:

Выполните действия: 1) \(9+\frac{3}{17}\); 2) \(\frac{9}{72}+5\); 3) \(4\frac{5}{18}+2\frac{4}{18}\); 4) \(6\frac{7}{15}-2\frac{3}{15}\); 5) \(9\frac{11}{16}+4\frac{3}{16}-2\frac{2}{16}\); 6) \(15\frac{7}{10}+2\frac{2}{10}-4\frac{1}{10}\).

Ответ:

  1. \(9+\frac{3}{17}=9\frac{3}{17}\).
  2. \(\frac{9}{72}+5=\frac{1}{8}+5=5\frac{1}{8}\).
  3. \(4\frac{5}{18}+2\frac{4}{18}=6\frac{9}{18}=6\frac{1}{2}\).
  4. \(6\frac{7}{15}-2\frac{3}{15}=4\frac{4}{15}\).
  5. \(9\frac{11}{16}+4\frac{3}{16}-2\frac{2}{16}=13\frac{14}{16}-2\frac{2}{16}=11\frac{12}{16}=11\frac{3}{4}\).
  6. \(15\frac{7}{10}+2\frac{2}{10}-4\frac{1}{10}=17\frac{9}{10}-4\frac{1}{10}=13\frac{8}{10}=13\frac{4}{5}\).

Ответ: 1) \(9\frac{3}{17}\); 2) \(5\frac{1}{8}\); 3) \(6\frac{1}{2}\); 4) \(4\frac{4}{15}\); 5) \(11\frac{3}{4}\); 6) \(13\frac{4}{5}\).