Basic Math Examples

80 \frac{2}{5}

$80 \frac{2}{5}$

Step 1

A mixed number is an addition of its whole and fractional parts.

80 + \frac{2}{5}

$80 + \frac{2}{5}$

Step 2

Add

80

$80$ and

\frac{2}{5}

$\frac{2}{5}$ .

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Step 2.1

To write

80

$80$ as a fraction with a common denominator, multiply by

\frac{5}{5}

$\frac{5}{5}$ .

80 \cdot \frac{5}{5} + \frac{2}{5}

$80 \cdot \frac{5}{5} + \frac{2}{5}$

Step 2.2

Combine

80

$80$ and

\frac{5}{5}

$\frac{5}{5}$ .

\frac{80 \cdot 5}{5} + \frac{2}{5}

$\frac{80 \cdot 5}{5} + \frac{2}{5}$

Step 2.3

Combine the numerators over the common denominator.

\frac{80 \cdot 5 + 2}{5}

$\frac{80 \cdot 5 + 2}{5}$

Step 2.4

Simplify the numerator.

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Step 2.4.1

Multiply

80

$80$ by

5

$5$ .

\frac{400 + 2}{5}

$\frac{400 + 2}{5}$

Step 2.4.2

Add

400

$400$ and

2

$2$ .

\frac{402}{5}

$\frac{402}{5}$

\frac{402}{5}

$\frac{402}{5}$

\frac{402}{5}

$\frac{402}{5}$

Step 3

The result can be shown in multiple forms.

Exact Form:

\frac{402}{5}

$\frac{402}{5}$

Decimal Form:

80.4

$80.4$

Mixed Number Form:

80 \frac{2}{5}

$80 \frac{2}{5}$