# Pre-Algebra Examples

To write as a fraction with a common denominator, multiply by .

To write as a fraction with a common denominator, multiply by .

Combine.

Multiply by .

Combine.

Multiply by .

Combine the numerators over the common denominator.

Multiply by .

Multiply by .

Multiply by .

Subtract from .

To write as a fraction with a common denominator, multiply by .

To write as a fraction with a common denominator, multiply by .

Combine.

Multiply by .

Combine.

Multiply by .

Combine the numerators over the common denominator.

Multiply by .

Multiply by .

Multiply by .

Subtract from .

The result can be shown in both exact and decimal forms.

Exact Form:

Decimal Form: