59. Выполните умножение: 1) \(\frac{5}{6} \cdot \frac{3}{20}\) 2) \(\frac{3}{7} \cdot \frac{6}{11}\) 3) \(\frac{10}{11} \cdot \frac{11}{26}\) 4) \(\frac{24}{65} \cdot \frac{39}{40}\)

1) \(\frac{5}{6} \cdot \frac{3}{20} = \frac{5 \cdot 3}{6 \cdot 20} = \frac{15}{120} = \frac{1}{8}\) 2) \(\frac{3}{7} \cdot \frac{6}{11} = \frac{3 \cdot 6}{7 \cdot 11} = \frac{18}{77}\) 3) \(\frac{10}{11} \cdot \frac{11}{26} = \frac{10 \cdot 11}{11 \cdot 26} = \frac{110}{286} = \frac{5}{13}\) 4) \(\frac{24}{65} \cdot \frac{39}{40} = \frac{24 \cdot 39}{65 \cdot 40} = \frac{936}{2600} = \frac{10 \cdot 4 \cdot 234}{10 \cdot 4 \cdot 650} = \frac{117}{325} \)