Question

Does anyone know how to do this ? Please help !

Answer 1

`(-1)/(5)m-(4)/(5)`

Explanation:

You are given:

`(2)/(5)m-(4)/(5)-(3)/(5)m`

Reorder using commutative property (putting like terms together):

`(2)/(5)m-(3)/(5)m-(4)/(5)`

Now we are going to bring down the -4/5 (there is nothing to do there).

(2/5)m and -(3/5)m have the same denominator all we have to do is figure out what is 2-3 which is -1

`(-1)/(5)m-(4)/(5)`

Answer 2

Ah, all you have to do is combine 2/5m and 3/5m.

In this case:

=2/5m - 4/5 - 3/5m

=-1/5m - 4/5

=-m/5-4/5