Answer
$\frac{x+y}{2x+1}$
Work Step by Step
$\frac{1+\frac{x}{y}}{\frac{2x+1}{y}}$
$y*(\frac{1+\frac{x}{y}}{\frac{2x+1}{y}})$
$(y+x)/(2x+1)$
$\frac{x+y}{2x+1}$
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