Question

Find each sum or difference.

$\frac{3}{x}+\frac{6}{x}$

Short answer

$\frac{9}{\mathbf{x}}$

Step-by-step solution

Step 1. Add.

Let $x,y$ and $z$ be polynomials with $z\ne 0$, such that, role="math" localid="1648020813273" $\frac{x}{z}+\frac{y}{z}=\frac{x+y}{z}$.

Step 2. Add.

Find the sum.

$\frac{3}{x}+\frac{6}{x}=\frac{3+6}{x}$

Step 3. Simplify.

Simplify the obtained expression.

$\frac{9}{x}$

Therefore, the sum of given expression is $\frac{9}{x}$.