Решите задания с заполнением пропусков.

1. \( \frac{64}{120} = \frac{8}{15} = \frac{32}{60} \) 2. \( \frac{40}{81} = \frac{8}{9} = \frac{32}{36} \) 3. \( \frac{15}{35} = \frac{7}{14} = \frac{24}{21} \) 4. \( \frac{15}{20} = \frac{3}{4} = \frac{27}{36} \) 5. \( \frac{60}{66} = \frac{10}{11} = \frac{80}{88} \)