Question

(100.5⁷+5¹¹:25):(5.5¹³:25²)

Answer 1

\(\dfrac{100\cdot5^7+5^{11}:25}{5\cdot5^{13}:25^2}=\dfrac{5^9\cdot2^2+5^9}{5^{14}:5^4}=\dfrac{5^9\cdot5}{5^{10}}=1\)