Write as a fraction with a common denominator.

Combine the numerators over the common denominator.

Add and .

Write as a fraction with a common denominator.

Combine the numerators over the common denominator.

Add and .

Factor out of .

Factor out of .

Cancel the common factor.

Rewrite the expression.

Multiply and .

Multiply by .

Multiply by .

The result can be shown in multiple forms.

Exact Form:

Decimal Form:

Mixed Number Form:

Evaluate (1+1/9)*(1+1/11)