In order to get 1 as result we need to get the exponent 0, because as you must know, every number at power 0 is equal to 1.
[tex]\frac{3^5}{3^5}=3^{5-5}=3^0=1[/tex]So the answer is:
[tex]\frac{3^5}{3^{5^{}}}[/tex]Another solution could be:
[tex]\frac{3^3}{3^3}[/tex]