1) $$ \frac{4^3 \cdot (25)^2}{8^5} = \frac{(2^2)^3 \cdot (5^2)^2}{(2^3)^5} = \frac{2^6 \cdot 5^4}{2^{15}} = \frac{5^4}{2^9} = \frac{625}{512} $$
Ответ: $$\frac{625}{512}$$