Question

What is `7/8 - 12/13 -: 16/13`?

Answer 1

You first clear up the division, and then the subtraction.

Explanation:

Dividing by a fraction is the same as multiplying by its inverse (upside-down fraction)

`=7/8-12/13xx13/16`

`=7/8-12/cancel13xxcancel13/16=7/8-12/16`

Multiply top and bottom of the first fraction by 2:

`14/16-12/16=2/16=(cancel2xx1)/(cancel2xx8)=1/8`