# Precalculus Examples

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

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

Combine.

Combine.

Reorder terms.

Combine the numerators over the common denominator.

Factor out of .

Factor out of .

Factor out of .

Factor out of .

Apply the distributive property.

Multiply by .

Apply the distributive property.

Multiply by .

Subtract from .

Subtract from .

Add and .

Multiply by .