Simplify xy−yx1x+1y\frac{\frac{x}{y} - \frac{y}{x}}{\frac{1}{x} + \frac{1}{y}}x1+y1yx−xy
x−yx-yx−y
x+yx+yx+y
x2−y2xy\frac{x^2-y^2}{xy}xyx2−y2
x+yxy\frac{x+y}{xy}xyx+y