Pre-Algebra Examples

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

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 $1 \cdot - 1 = - 1$

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

Step 2

Write $1$ as a fraction with a common denominator.

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

Step 3

Combine the numerators over the common denominator.

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

Step 4

Subtract $1$ from $2$ .

$\frac{1}{2}$

Step 5

The result can be shown in multiple forms.

Exact Form:

$\frac{1}{2}$

Decimal Form:

$0.5$