Basic Math Examples

$21 \frac{1}{3}$

Step 1

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

$21 + \frac{1}{3}$

Step 2

Add

$21$ and

$\frac{1}{3}$ .

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Step 2.1

To write

$21$ as a fraction with a common denominator, multiply by

$\frac{3}{3}$ .

$21 \cdot \frac{3}{3} + \frac{1}{3}$

Step 2.2

Combine

$21$ and

$\frac{3}{3}$ .

$\frac{21 \cdot 3}{3} + \frac{1}{3}$

Step 2.3

Combine the numerators over the common denominator.

$\frac{21 \cdot 3 + 1}{3}$

Step 2.4

Simplify the numerator.

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Step 2.4.1

Multiply

$21$ by

$3$ .

$\frac{63 + 1}{3}$

Step 2.4.2

Add

$63$ and

$1$ .

$\frac{64}{3}$

Step 3

The result can be shown in multiple forms.

Exact Form:

$\frac{64}{3}$

Decimal Form:

$21.\overline{3}$

Mixed Number Form:

$21 \frac{1}{3}$