Question

How do you combine like terms to simplify the expression `7/8m + 9/10 - 2m-3/5`?

Answer 1

See the entire solution process below:

Explanation:

First, group like terms:

`7/8m - 2m + 9/10 - 3/5`

Next, put the `m` terms and the constants over common denominators by multiplying by the appropriate form of `1` to allow the terms to be added and subtracted:

`7/8m - (8/8 xx 2m) + 9/10 - (2/2 xx 3/5)`

`7/8m - 16/8m + 9/10 - 6/10`

`(7/8 - 16/8)m + (9/10 - 6/10)`

`-9/8m + 3/10`