Question 554131
You may want to see my FREE website for additional explanation on this topic.  The easiest way to find the website is to use the easy-to-remember and easy-to-spell link www.mathinlivingcolor.com.  Near the bottom of this page is a link that takes you to my Homepage.  


Once you have found my Homepage, look for the link "Basic, Intermediate, and College Algebra: One Step at a Time."  Choose "Basic Algebra" and look in Chapter 3 for "Section 3.04 Adding and Subtracting Fractions."  However, you had better start with "Section 3.03 Finding the Least Common Denominator", because if you do not have a common denominator, then you CAN'T add or subtract the fractions.  I think you will really like the "Math in Living Color" pages that go with these sections.  


If you need to contact me, send me an Email at rapaljer@seminolestate.edu.


Dr. Robert J. Rapalje, Retired
Seminole State College of Florida
Altamonte Springs Campus