Pre-Algebra Examples

$2 + - \frac{1}{2}$

Step 1

Replace all occurrences of $+$ $-$ with a single $-$ . A plus sign followed by a minus sign has the same mathematical meaning as a single minus sign because $1 \cdot - 1 = - 1$

$2 - \frac{1}{2}$

Step 2

To write $2$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

$2 \cdot \frac{2}{2} - \frac{1}{2}$

Step 3

Combine $2$ and $\frac{2}{2}$ .

$\frac{2 \cdot 2}{2} - \frac{1}{2}$

Step 4

Combine the numerators over the common denominator.

$\frac{2 \cdot 2 - 1}{2}$

Step 5

Simplify the numerator.

Tap for more steps...

Step 5.1

Multiply $2$ by $2$ .

$\frac{4 - 1}{2}$

Step 5.2

Subtract $1$ from $4$ .

$\frac{3}{2}$

Step 6

The result can be shown in multiple forms.

Exact Form:

$\frac{3}{2}$

Decimal Form:

$1.5$

Mixed Number Form:

$1 \frac{1}{2}$