Pre-Algebra Examples

$\frac{3}{x + 2} \cdot \frac{7}{2 x}$

Step 1

Multiply $\frac{3}{x + 2} \cdot \frac{7}{2 x}$ .

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Step 1.1

Multiply $\frac{3}{x + 2}$ by $\frac{7}{2 x}$ .

$\frac{3 \cdot 7}{(x + 2) (2 x)}$

Step 1.2

Multiply $3$ by $7$ .

$\frac{21}{(x + 2) (2 x)}$

$\frac{21}{(x + 2) (2 x)}$

Step 2

Move $2$ to the left of $x + 2$ .

$\frac{21}{2 \cdot (x + 2) x}$

Step 3

Reorder factors in $\frac{21}{2 (x + 2) x}$ .

$\frac{21}{2 x (x + 2)}$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$