## Prealgebra (7th Edition)

$\frac{2}{3}$
x+y Replace x with -$\frac{1}{6}$ and y with $\frac{5}{6}$ $\frac{-1}{6}$ + $\frac{5}{6}$ =$\frac{-1+5}{6}$ =$\frac{4}{6}$ =$\frac{2\times2}{2\times3}$ =$\frac{2}{3}$