Question

How do you subtract `-\frac { 10} { 13} - \frac { 2} { 7}`?

Answer 1

See a solution process below:

Explanation:

To add or subtract fractions they must be over a common denominator. First, we will put both fractions over a common denominator by multiplying each by the appropriate form of `1`:

`(-10/13 xx 7/7) - (2/7 xx 13/13) =>`

`-70/91 - 26/91`

Now, we can subtract the numerators over the common denominator:

`(-70 - 26)/91 =>`

`-96/91`