Answer
$\frac{1}{2}$a-$\frac{9}{8}$.
Work Step by Step
Simplify this expression:
$\frac{1}{3}$a-$\frac{3}{8}$+$\frac{1}{6}$a-$\frac{3}{4}$
Make all like terms have a common denominator.
$\frac{2}{6}$a-$\frac{3}{8}$+$\frac{1}{6}$a-$\frac{6}{8}$
Add like terms.
$\frac{3}{6}$a-$\frac{9}{8}$
Reduce.
$\frac{1}{2}$a-$\frac{9}{8}$
