a) $$5\frac{1}{4} : \frac{4}{5} = \frac{21}{4} : \frac{4}{5} = \frac{21}{4} \cdot \frac{5}{4} = \frac{105}{16} = 6\frac{9}{16}$$
Ответ: $$6\frac{9}{16}$$
в) $$2\frac{4}{7} : 1\frac{3}{10} = \frac{18}{7} : \frac{13}{10} = \frac{18}{7} \cdot \frac{10}{13} = \frac{180}{91} = 1\frac{89}{91}$$
Ответ: $$1\frac{89}{91}$$
б) $$\frac{2}{13} : 2\frac{2}{13} = \frac{2}{13} : \frac{28}{13} = \frac{2}{13} \cdot \frac{13}{28} = \frac{26}{364} = \frac{1}{14}$$
Ответ: $$\frac{1}{14}$$
г) $$10\frac{3}{5} : 3\frac{3}{5} = \frac{53}{5} : \frac{18}{5} = \frac{53}{5} \cdot \frac{5}{18} = \frac{265}{90} = \frac{53}{18} = 2\frac{17}{18}$$
Ответ: $$2\frac{17}{18}$$
е) $$5\frac{3}{7} : 3 = \frac{38}{7} : 3 = \frac{38}{7} \cdot \frac{1}{3} = \frac{38}{21} = 1\frac{17}{21}$$
Ответ: $$1\frac{17}{21}$$
Ж) $$0 : \frac{7}{15} = 0$$
Ответ: $$0$$
з) $$5\frac{1}{16} : 1 = \frac{81}{16} : 1 = \frac{81}{16} \cdot 1 = \frac{81}{16} = 5\frac{1}{16}$$
Ответ: $$5\frac{1}{16}$$