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Worksheet
Curated OER

Topic 9.4 - Adding and Subtracting Rational Expressions

For Students 8th - 10th
This worksheet contains a good selection of problems of adding and subtracting rational expressions. There are eight problems. None of the problems have common denominators.  A few are mixed expressions and some require factoring....
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Lesson Plan
Curated OER

Addition And Subtraction of Rational Expressions

For Teachers 6th - 8th
Young algebraic thinkers find the solutions to 20 rational expressions using addition and subtraction. They pay close attention to following the Order of Operations!
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Worksheet
Curated OER

Rational Expressions Two - Addition and Subtraction

For Students 8th - 11th
This worksheet is a mix of 24 problems on adding and subtracting rational expressions. All of the problems have unlike denominators. Most require factoring of the denominators, and a few contain mixed expressions and three expressions....
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Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: Intermediate Algebra

For Students 9th - 10th
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,...
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Activity
Oswego City School District

Regents Exam Prep Center: Adding and Subtracting Fractions

For Students 9th - 10th Standards
Use this site to learn how to add and subtract algebraic fractions, even if there aren't common denominators. Provides plenty of examples.
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Activity
Purple Math

Purplemath: Adding & Subtracting Rational Expressions: Introduction

For Students 9th - 10th Standards
Finding common denominators is no problem with Purplemath. Use this lesson to learn how to add and subtract rational expressions with these great examples.
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Applications of Rational Expressions

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] In this lesson students solve applications that involve adding and subtracting rational expressions. Students watch a video tutorial, explore guided notes and...
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Activity
Varsity Tutors

Varsity Tutors: Hotmath: Practice Problems: Adding and Subtracting Rational Expressions

For Students 9th - 10th Standards
Sixteen problems present a variety of practice adding and subtracting rational expressions. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View...
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Activity
Lawrence Hall of Science

The Math Page: Skill in Algebra: Adding Algebraic Fractions

For Students 9th - 10th
Here is a site that clearly and thoroughly explains adding algebraic fractions (rational expressions) both with common denominators and with different denominators. There are example problems solved, problems for the student to attempt,...
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Activity
Help Algebra

Help algebra.com: Simplifying Rational Expressions

For Students 9th - 10th Standards
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.
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Activity
Interactive Mathematics

Interactive Mathematics: Addition & Subtraction of Fractions

For Students 9th - 10th Standards
The addition and subtraction of algebraic expressions is presented with detailed examples and exercises for extra practice.
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Activity
Interactive Mathematics

Interactive Mathematics: Factoring and Fractions

For Students 9th - 10th Standards
Polynomials are the focus of these lessons, concentrating on factoring and special products to work with rational expressions. Interactive tools of Live Math and Scientific Notebook are used to provide animated solutions to the examples....