Question

Simplify: $\frac{3^5\times {10}^5\times 25}{5^7\times 6^5}$

Answer 1

$\frac{3^5\times {10}^5\times 25}{5^7\times 6^5}$

$=\frac{3^5\times (5\times 2{)}^5\times 5^2}{5^7\times (3\times 2{)}^5}$

$=\frac{3^5\times 5^7\times 2^5}{5^7\times 3^5\times 2^5}$

$=1$.