Prove that $\displaystyle X_n$ converges to 0 in probability if and only if $\displaystyle E ( \frac { |X_n | } {1 + |X_n|}) \rightarrow 0 $

So I know that $\displaystyle P(|X_n-0| \geq \epsilon ) \rightarrow 0 $, but I don't really know how I should rewrite the expectation value part to make this work. Thank you!