Pre-Algebra Examples

$\frac{3}{4} + - \frac{1}{4}$

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 $1 \cdot - 1 = - 1$

$\frac{3}{4} - \frac{1}{4}$

Step 2

Combine the numerators over the common denominator.

$\frac{3 - 1}{4}$

Step 3

Subtract $1$ from $3$ .

$\frac{2}{4}$

Step 4

Cancel the common factor of $2$ and $4$ .

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Step 4.1

Factor $2$ out of $2$ .

$\frac{2 (1)}{4}$

Step 4.2

Cancel the common factors.

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Step 4.2.1

Factor $2$ out of $4$ .

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

Step 4.2.2

Cancel the common factor.

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

Step 4.2.3

Rewrite the expression.

$\frac{1}{2}$

Step 5

The result can be shown in multiple forms.

Exact Form:

$\frac{1}{2}$

Decimal Form:

$0.5$