McGraw Hill
Glencoe Mathematics: Online Study Tools: Adding and Subtracting Like Fractions
This site gives a short interactive quiz which allows students to self-assess their understanding of the concept of adding and subtracting like fractions.
Other
Help With Fractions: Subtracting Fractions
The rules for subtracting fractions with like or unlike denominators are clearly explained at this website. Even mixed number subtraction is tackled! This is an excellent place to get step by step explanations for working with fractions.
Khan Academy
Khan Academy: Add and Subtract Fractions Word Problems (Same Denominator)
Practice solving word problems by adding and subtracting fractions. The fractions used in these problems have like (common) denominators.
Khan Academy
Khan Academy: Combining Like Terms With Rational Coefficients
Practice combining like terms for expressions that have rational coefficients. This requires adding and subtracting fractions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...
Illustrative Mathematics
Illustrative Mathematics: Finding Common Denominators to Subtract
Part (a) of this task asks students to use two different denominators to subtract fractions. The purpose of this is to help students realize that any common denominator will work, not just the least common denominator. Part (b) does not...
CK-12 Foundation
Ck 12: Arithmetic: Addition of Fractions
[Free Registration/Login may be required to access all resource tools.] Add and subtract fractions and mixed numbers with like and unlike denominators
Sophia Learning
Sophia: Adding and Subtracting Rational Expressions
This learning tutorial investigates how to add and subtract rational expressions with like and unlike denominators. The lesson includes two videos that demonstrate the process of adding and subtracting rational expressions and four...
CK-12 Foundation
Ck 12: Arithmetic: Subtraction of Fractions
[Free Registration/Login may be required to access all resource tools.] In this lesson students subtract fractions and mixed numbers with like and unlike denominators. Students examine guided notes, review guided practice, watch...
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Add and Subtract Fractions
Find a quick, concise explanation of how to add and subtract fractions. Step by step examples are included to help you understand how to find the sum or difference for fractions with both like and unlike denominators.
Help Algebra
Help algebra.com: Simplifying Rational Expressions
The process of factoring and canceling is used to simplify, multiply, and divide rational expressions. Adding and subtracting rational expressions is also demonstrated, including finding common denominators.
Teaching Treasures Publications
Teaching Treasures: Year Five Math (Page 5)
Sharpen your computation skills with this interactive worksheet. The focus is adding and subtracting fractions with like and unlike denominators and reducing to lowest terms. Problems are set up horizontally and answers can be checked...
Texas A&M University
Wtamu Virtual Math Lab: Intermediate Algebra
This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...
CK-12 Foundation
Ck 12: Arithmetic: Differences of Fractions With Like Denominators
[Free Registration/Login may be required to access all resource tools.] Find the difference of fractions with like or common denominators.