$$\frac{\sqrt[5]{5}+\sqrt[5]{5^2}+...+\sqrt[5]{5^n}}{\frac{1}{\sqrt[5]{5}}+\frac{1}{\sqrt[5]{5^2}}...+\frac{1}{\sqrt[5]{5^n}}}$$

So I know I have to get some relation where I pretty much get the same thing in the numerator and denominator. I guess in the denominator I can put everything over a common denominator $\sqrt[5]{5^n}$ and then on top of that I get $\sqrt[5]{5^{n-1}}+\sqrt[5]{5^{n-2}}+...+1$. Now the problem is how do I get the same thing in the numerator ?