Odpowiedź:
[tex]a) -\frac{3}{5}:(-\frac{9}{10})=-\frac{3}{5}\cdot(-\frac{10}{9})=\frac{30}{45}=\frac{2}{3}\\\\d) -\frac{8}{9}:(-\frac{16}{27})=-\frac{8}{9}\cdot(-\frac{27}{16})=\frac{8\cdot27}{9\cdot16}=\frac{3}{2}\\\\g) -3\frac{3}{8}:(-\frac{9}{10})=-\frac{27}{8}\cdot(-\frac{10}{9})=\frac{27\cdot10}{8\cdot9}=\frac{30}{8}=\frac{15}{4}=3\frac{3}{4}\\\\j) -1\frac{5}{9}:\frac{7}{9}=-\frac{14}{9}\cdot\frac{9}{7}=-2\\\\l) 7:(-\frac{5}{6})=7\cdot(-\frac{6}{5})=-\frac{42}{5}=-8\frac{2}{5}\\[/tex]
[tex]o) -\frac{5}{9}:(-\frac{7}{18})=-\frac{5}{9}\cdot(-\frac{18}{7})=\frac{10}{7}=1\frac{3}{7}\\\\s) 13\frac{1}{5}:(-\frac{11}{16})=\frac{66}{5}\cdot(-\frac{16}{11})=-\frac{66\cdot16}{5\cdot11}=-\frac{6\cdot16}{5}=-\frac{96}{5}=-19\frac{1}{5}[/tex]
Szczegółowe wyjaśnienie:
