Ответ:
- а) \(1\frac{1}{5}:2=\frac{6}{5}\cdot\frac{1}{2}=\frac{3}{5}\).
- б) \(2\frac{2}{5}:3=\frac{12}{5}\cdot\frac{1}{3}=\frac{4}{5}\).
- в) \(9:2\frac{1}{4}=9:\frac{9}{4}=9\cdot\frac{4}{9}=4\).
- г) \(3\frac{1}{7}:2=\frac{22}{7}\cdot\frac{1}{2}=\frac{11}{7}=1\frac{4}{7}\).
- д) \(2:5\frac{1}{3}=2:\frac{16}{3}=2\cdot\frac{3}{16}=\frac{3}{8}\).
- е) \(2\frac{4}{5}:7=\frac{14}{5}\cdot\frac{1}{7}=\frac{2}{5}\).
- ж) \(12:2\frac{2}{3}=12:\frac{8}{3}=12\cdot\frac{3}{8}=\frac{9}{2}=4\frac{1}{2}\).
- з) \(21\frac{1}{4}:5=\frac{85}{4}\cdot\frac{1}{5}=\frac{17}{4}=4\frac{1}{4}\).
Ответ: а) \(\frac{3}{5}\); б) \(\frac{4}{5}\); в) 4; г) \(1\frac{4}{7}\); д) \(\frac{3}{8}\); е) \(\frac{2}{5}\); ж) \(4\frac{1}{2}\); з) \(4\frac{1}{4}\).
