Hi i cant seem to work out how to simplify this if anyone can help thanks.
1/x + x/x+y + y/x-y
$\displaystyle \frac{1}{x} + \frac{x}{x + y} + \frac{y}{x - y}$
Looks to me like a good common denominator would be $\displaystyle x(x + y)(x - y)$
If you can't get there in one step then add the fractions two at a time.
-Dan