Вычислите:
а) $\frac{5^7}{25 * 125}$;
б) $\frac{64 * 32}{2^10}$;
в) $\frac{16 * 3^6}{81 * 2^6}$.
$\frac{5^7}{25 * 125} = \frac{5^7}{5^2 * 5^3} = \frac{5^7}{5^5} = 5^2 = 25$
$\frac{64 * 32}{2^10} = \frac{2^6 * 2^5}{2^10} = \frac{2^11}{2^10} = 2$
$\frac{16 * 3^6}{81 * 2^6} = \frac{2^4 * 3^6}{3^4 * 2^6} = \frac{3^2}{2^2} = \frac{9}{4} = 2\frac{1}{4}$