You have to try this yourself. It is the only way you will learn.
I've already done at least one of these problems for you.
First, find the LCD for each .
Post your work if you get stuck.
simplify and write answer as a mixed number
13 1/48 - 2 1/2 + 3 1/3
2 answers
13 1/48- 2 1/12+ 3 1/3
=13 1/48 - 2 1/48
=13 1/48 - 2 4/48
=12 49/48 - 2 4/48
=10 45/48
10 45/48 +3 1/3
10 45/48 + 3 16/48
=13 61/48
=13 1/48 - 2 1/48
=13 1/48 - 2 4/48
=12 49/48 - 2 4/48
=10 45/48
10 45/48 +3 1/3
10 45/48 + 3 16/48
=13 61/48