Задание 9. Выполните действия: 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) \(\frac{16}{5}\cdot\frac{15}{14}\cdot\frac{63}{24}\).