Question

Combine like terms to simplify the expression
-2/3a+5/6a-1/6

Answer 1

I got a common denominator on the terms with 'a' in them and then added the coefficients.

Answer 2

$-\frac{2}{3}a+\frac{5}{6}a-\frac{1}{6}=-\frac{4a}{6}+\frac{5a}{6}-\frac{1}{6}=\frac{-4a+5a-1}{6}=\frac{a-1}{6}$