Question

How do you combine `-11/(16mn) - 7/(16mn)`?

Answer 1

`-9/(8mn)`

Explanation:

Since the denominators are the same
`-11/(16mn)-7/(16mn)`
`color(white)("XXXX")` `=(-11-7)/(16mn)`

`color(white)("XXXX")` `=(-18)/(16mn)`

`color(white)("XXXX")` `= (-9)/(8mn)`