ninapham2002
3

so what you should do is mulitply $\frac{a+1}{a}$ by $\frac{a+1}{a+1}$ and multiply $\frac{a}{a+1}$ by $\frac{a}{a}$=$\frac{(a+1)(a+1)}{(a)(a+1)}- \frac{(a)(a)}{(a)(a+1)} = \frac{(a+1)^{2}-(a^{2})}{(a)(a+1)}$ WAIT I WILL BE BACK TO CORRECT AFTER DINNER