Math Problem Solver

$$9 - 3 \cdot \frac{1}{3} = 8$$

The sum can be computed by rewriting each term over a common denominator, where the least common denominator of $\frac{9}{1}$ and $\frac{-3}{3}$ is $3$. $$\begin{aligned} 9 - 3 \cdot \frac{1}{3} &= \frac{9 \cdot 3}{1 \cdot 3} + \frac{-3 \cdot 1}{3 \cdot 1} \\ &= \frac{27 + -3}{3} \\ &= \frac{24}{3} \\&= 8 \end{aligned}$$