1. Вычислим:
$$\frac{4}{5}:\frac{5}{24}:\frac{25}{32}$$ = $$\frac{4}{5} \cdot \frac{24}{5} \cdot \frac{32}{25}$$ = $$\frac{4 \cdot 24 \cdot 32}{5 \cdot 5 \cdot 25}$$ = $$\frac{3072}{625}$$ = 4$$\frac{572}{625}$$
Ответ: 4$$\frac{572}{625}$$