Задание 9. Выполните действие: 1) \(\frac{6}{25}\cdot\frac{5}{12}\); 2) \(\frac{15}{22}\cdot\frac{11}{20}\); 3) \(\frac{7}{4}\cdot\frac{12}{35}\); 4) \(\frac{18}{5}\cdot\frac{40}{9}\); 5) \(\frac{2}{15}\cdot\frac{3}{8}\); 6) \(\frac{6}{11}\cdot\frac{15}{8}\cdot\frac{22}{5}\); 7) \(\frac{3}{10}\cdot\frac{35}{36}\cdot\frac{24}{7}\); 8) \(\frac{20}{3}\cdot\frac{9}{28}\cdot\frac{14}{75}\); 9) \(\frac{30}{19}\cdot\frac{13}{100}\cdot\frac{20}{39}\); 10) \(\frac{16}{5}\cdot\frac{15}{14}\cdot\frac{63}{24}\); 11) \(\frac{3}{a}\cdot\frac{2a}{15}\); 12) \(\frac{9c}{8}\cdot\frac{56}{3c}\); 13) \(\frac{1}{13b}\cdot\frac{26}{3}\); 14) \(\frac{4k}{9}\cdot\frac{27}{20}\); 15) \(\frac{15b}{8}\cdot\frac{2}{35b}\); 16) \(\frac{3x}{2}\cdot\frac{6}{x^2}\); 17) \(\frac{y^2}{5}\cdot\frac{2}{y}\); 18) \(\frac{32a^3}{9}\cdot\frac{18}{12a^2}\); 19) \(\frac{10}{x^3}\cdot\frac{6x}{25}\cdot\frac{x}{9}\); 20) \(\frac{3}{a}\cdot\frac{a^2}{12}\cdot\frac{8}{a^3}\); 21) \(\frac{1}{a-b}\cdot\frac{1}{a+b}\); 22) \(\frac{1}{2(c-3)}\cdot\frac{1}{c-3}\); 23) \(\frac{3+c}{4}\cdot\frac{9}{2(3+c)}\); 24) \(\frac{5(x+y)}{63}\cdot\frac{7}{3(x+y)}\); 25) \(\frac{(b-2)^2}{a}\cdot\frac{8}{b-2}\); 26) \(\frac{4c^3}{x-y}\cdot\frac{(x-y)^2}{40c}\); 27) \(\frac{3b}{a}\cdot2\); 28) \(\frac{5x}{4}\cdot8\); 29) \(\frac{12a^2}{5}\cdot(-15a)\); 30) \(\frac{9}{16m}\cdot48m^2\).

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