Question 273686
 
1/(fifth root 5^3) 
{{{1/root(5,5^3)}}}

(cube root 5^2.7)/(cube root 5^4.5) 
{{{root(3,5^2.7)/root(3,5^4.5)}}}
{{{1/root(3,5^1.8)}}}
{{{1/root(3,5^(9/5))}}}
1/5^(9/5*3)
1/5^3/5
= 1/(fifth root 5^3)