## Prealgebra (7th Edition)

$\frac{5}{22}$
$\frac{8}{11}$ - $\frac{1}{2}$ =$\frac{8\times2}{11\times2}$ - $\frac{1\times11}{2\times11}$ =$\frac{16}{22}$ - $\frac{11}{22}$ = =$\frac{16-11}{22}$=$\frac{5}{22}$ LCD of 11 and 2 is 22