№4 Найдите частное

1) $$9 : \frac{4}{5} = 9 * \frac{5}{4} = \frac{45}{4} = 11 \frac{1}{4}$$ 2) $$12 : \frac{6}{7} = 12 * \frac{7}{6} = \frac{84}{6} = 14$$ 3) $$15 : \frac{10}{11} = 15 * \frac{11}{10} = \frac{165}{10} = 16 \frac{5}{10} = 16 \frac{1}{2}$$ 4) $$1 : \frac{16}{17} = 1 * \frac{17}{16} = \frac{17}{16} = 1 \frac{1}{16}$$ 5) $$\frac{7}{18} : 4 = \frac{7}{18} * \frac{1}{4} = \frac{7}{72}$$ 6) $$\frac{12}{19} : 3 = \frac{12}{19} * \frac{1}{3} = \frac{12}{57} = \frac{4}{19}$$ 7) $$4 \frac{1}{6} : \frac{5}{9} = \frac{25}{6} : \frac{5}{9} = \frac{25}{6} * \frac{9}{5} = \frac{225}{30} = \frac{15}{2} = 7 \frac{1}{2}$$ 8) $$\frac{9}{16} : 1 \frac{1}{2} = \frac{9}{16} : \frac{3}{2} = \frac{9}{16} * \frac{2}{3} = \frac{18}{48} = \frac{3}{8}$$ 9) $$1 \frac{5}{7} : \frac{3}{4} = \frac{12}{7} : \frac{3}{4} = \frac{12}{7} * \frac{4}{3} = \frac{48}{21} = \frac{16}{7} = 2 \frac{2}{7}$$