Pre-Algebra Examples

$15 \div \frac{3}{4}$

Step 1

To divide by a fraction, multiply by its reciprocal.

$15 (\frac{4}{3})$

Step 2

Cancel the common factor of $3$ .

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Step 2.1

Factor $3$ out of $15$ .

$3 (5) \frac{4}{3}$

Step 2.2

Cancel the common factor.

$3 \cdot 5 \frac{4}{3}$

Step 2.3

Rewrite the expression.

$5 \cdot 4$

Step 3

Multiply $5$ by $4$ .

$20$