Выполните вычитание: a) $$9\frac{7}{11}-5\frac{3}{11}$$ б) $$6\frac{2}{7}-3\frac{5}{7}$$ в) $$4\frac{1}{5}-1\frac{7}{10}$$

a) $$9\frac{7}{11}-5\frac{3}{11} = 4\frac{4}{11}$$

б) $$6\frac{2}{7}-3\frac{5}{7} = 5\frac{9}{7} - 3\frac{5}{7} = 2\frac{4}{7}$$

в) $$4\frac{1}{5}-1\frac{7}{10} = 4\frac{2}{10}-1\frac{7}{10} = 3\frac{12}{10} - 1\frac{7}{10} = 2\frac{5}{10} = 2\frac{1}{2}$$

Ответ:

• a) $$4\frac{4}{11}$$
• б) $$2\frac{4}{7}$$
• в) $$2\frac{1}{2}$$