Basic Math Examples

7 \frac{9}{10}

$7 \frac{9}{10}$

Step 1

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

7 + \frac{9}{10}

$7 + \frac{9}{10}$

Step 2

Add

7

$7$ and

\frac{9}{10}

$\frac{9}{10}$ .

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Step 2.1

To write

7

$7$ as a fraction with a common denominator, multiply by

\frac{10}{10}

$\frac{10}{10}$ .

7 \cdot \frac{10}{10} + \frac{9}{10}

$7 \cdot \frac{10}{10} + \frac{9}{10}$

Step 2.2

Combine

7

$7$ and

\frac{10}{10}

$\frac{10}{10}$ .

\frac{7 \cdot 10}{10} + \frac{9}{10}

$\frac{7 \cdot 10}{10} + \frac{9}{10}$

Step 2.3

Combine the numerators over the common denominator.

\frac{7 \cdot 10 + 9}{10}

$\frac{7 \cdot 10 + 9}{10}$

Step 2.4

Simplify the numerator.

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Step 2.4.1

Multiply

7

$7$ by

10

$10$ .

\frac{70 + 9}{10}

$\frac{70 + 9}{10}$

Step 2.4.2

Add

70

$70$ and

9

$9$ .

\frac{79}{10}

$\frac{79}{10}$

\frac{79}{10}

$\frac{79}{10}$

\frac{79}{10}

$\frac{79}{10}$

Step 3

The result can be shown in multiple forms.

Exact Form:

\frac{79}{10}

$\frac{79}{10}$

Decimal Form:

7.9

$7.9$

Mixed Number Form:

7 \frac{9}{10}

$7 \frac{9}{10}$