Algebra Examples

$3 \frac{7}{9}$

Step 1

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

$3 + \frac{7}{9}$

Step 2

Add $3$ and $\frac{7}{9}$ .

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Step 2.1

To write $3$ as a fraction with a common denominator, multiply by $\frac{9}{9}$ .

$3 \cdot \frac{9}{9} + \frac{7}{9}$

Step 2.2

Combine $3$ and $\frac{9}{9}$ .

$\frac{3 \cdot 9}{9} + \frac{7}{9}$

Step 2.3

Combine the numerators over the common denominator.

$\frac{3 \cdot 9 + 7}{9}$

Step 2.4

Simplify the numerator.

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Step 2.4.1

Multiply $3$ by $9$ .

$\frac{27 + 7}{9}$

Step 2.4.2

Add $27$ and $7$ .

$\frac{34}{9}$