Write as a fraction with a common denominator.

Combine the numerators over the common denominator.

Subtract from .

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

Multiply and .

Multiply by .

Combine the numerators over the common denominator.

Multiply by .

Add and .

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

Multiply and .

Multiply by .

Combine the numerators over the common denominator.

Multiply by .

Subtract from .

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

Multiply and .

Multiply by .

Combine the numerators over the common denominator.

Multiply by .

Add and .

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

Multiply and .

Multiply by .

Combine the numerators over the common denominator.

Multiply by .

Subtract from .

Multiply by .

Combine.

Multiply by .

Combine.

Reorder the factors of .

Multiply by .

Reorder the factors of .

Multiply by .

Combine fractions with similar denominators.

Multiply.

Multiply by .

Multiply by .

Add and .

Subtract from .

The result can be shown in multiple forms.

Exact Form:

Decimal Form:

Simplify 1-1/3+1/9-1/27+1/81-1/243+1/729-1/2187