Question

How do you evaluate `8- \frac { 13} { 16}?`

Answer 1

`=>115/16`

Explanation:

`=>8-13/16`

First, we need a common denominator. The trick is to multiply numbers by `1`, so that the expression remains unchanged. However, we also want to give the other term a denominator of `16`. The way we do this is to multiply by `16/16`.

`=>8*16/16 - 13/16`

`=>128/16 - 13/16`

Now we can combine the fractions:

`=>(128-13)/16`

`=>115/16`