Question

Помогите решить

Answer 1

=$\frac{ 5^{-2}*5^3 }{5^{-1}* 5^{3} }$=$\frac{ 5^{-2+3} }{5^{-1+3} }$=$5^{1-2}$=5^-1=$\frac{1}{5}$

Answer 2

1/25 *125 / 1/5*125   = 5 / 25 = 1/5=0,2