Question

How do you simplify `-3/4 + 1/3 div-2/5` using PEMDAS?

Answer 1

No Parentheses, no Exponents, so Division is first.

Explanation:

We take the `1/3div-2/5` part first.
Dividing by a fraction is multiplying by its inverse:
`1/3xx-5/2=-5/6`

Now the original changes into:
`-3/4-5/6`

For a common denominator:
`-(3/4xx3/3)-(5/6xx2/2)=-9/12-10/12`

And this is:
`-19/12=-1 7/12`