Basic Math Examples

\frac{21}{2} \div \frac{7}{2}

$\frac{21}{2} \div \frac{7}{2}$

Step 1

To divide by a fraction, multiply by its reciprocal.

\frac{21}{2} \cdot \frac{2}{7}

$\frac{21}{2} \cdot \frac{2}{7}$

Step 2

Cancel the common factor of

7

$7$ .

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Step 2.1

Factor

7

$7$ out of

21

$21$ .

\frac{7 (3)}{2} \cdot \frac{2}{7}

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

Step 2.2

Cancel the common factor.

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

Step 2.3

Rewrite the expression.

$\frac{3}{2} \cdot 2$

Step 3

Cancel the common factor of

$2$ .

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Step 3.1

Cancel the common factor.

$\frac{3}{2} \cdot 2$

Step 3.2

Rewrite the expression.

$3$