712-34

To write -34 as a fraction with a common denominator, multiply by 33.

712-34⋅33

Multiply 34 and 33.

712-3⋅34⋅3

Multiply 4 by 3.

712-3⋅312

712-3⋅312

Combine the numerators over the common denominator.

7-3⋅312

Multiply -3 by 3.

7-912

Subtract 9 from 7.

-212

-212

Factor 2 out of -2.

2(-1)12

Cancel the common factors.

Factor 2 out of 12.

2⋅-12⋅6

Cancel the common factor.

2⋅-12⋅6

Rewrite the expression.

-16

-16

-16

Move the negative in front of the fraction.

-16

The result can be shown in multiple forms.

Exact Form:

-16

Decimal Form:

-0.16‾

Evaluate 7/12-3/4