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Pre-Algebra Examples

$\frac{4}{5} \cdot \frac{4}{10}$

Step 1

Cancel the common factor of $2$ .

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Step 1.1

Factor $2$ out of $4$ .

$\frac{2 (2)}{5} \cdot \frac{4}{10}$

Step 1.2

Factor $2$ out of $10$ .

$\frac{2 \cdot 2}{5} \cdot \frac{4}{2 \cdot 5}$

Step 1.3

Cancel the common factor.

$\frac{2 \cdot 2}{5} \cdot \frac{4}{2 \cdot 5}$

Step 1.4

Rewrite the expression.

$\frac{2}{5} \cdot \frac{4}{5}$

$\frac{2}{5} \cdot \frac{4}{5}$

Step 2

Multiply $\frac{2}{5}$ by $\frac{4}{5}$ .

$\frac{2 \cdot 4}{5 \cdot 5}$

Step 3

Multiply.

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Step 3.1

Multiply $2$ by $4$ .

$\frac{8}{5 \cdot 5}$

Step 3.2

Multiply $5$ by $5$ .

$\frac{8}{25}$

$\frac{8}{25}$

Step 4

The result can be shown in multiple forms.

Exact Form:

$\frac{8}{25}$

Decimal Form:

$0.32$

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