Lawrence Hall of Science
The Math Page: Skill in Algebra: Adding Algebraic Fractions
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,...
Oswego City School District
Regents Exam Prep Center: Adding and Subtracting Fractions
Use this site to learn how to add and subtract algebraic fractions, even if there aren't common denominators. Provides plenty of examples.
Mangahigh
Mangahigh: Algebra: Add and Subtract Algebraic Fractions Using Factoring
Students learn about the concept of adding algebraic fractions by exploring a tutorial. They can then test their knowledge by taking a ten question assessment that increases in difficulty as they correctly answer questions.
Oswego City School District
Regents Exam Prep Center: Algebraic Fractions
Fractions containing variables can challenge students--and for teachers to teach. Here are explanations of what algebraic fractions are, how they might be simplified, how they are multiplied, divided, added, and subtracted.
Math Medics
S.o.s. Math: Adding Compound Fractions Mixed Numbers
Explains how to work with compound fractions (mixed numbers). Gives examples and exercises to practice this skill.
Math Medics
S.o.s. Math: Simple Fractions
This S.O.S. tutorial gives students a basic review of simple fractions. Follow the tutorial to refresh your skills involving simple fraction manipulations. Each section contains problems with links to the answers.
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.
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,...
Math Medics
S.o.s. Math: Complex Fractions/rules for Operations
A brief look at multiplying, adding, and subtracting complex fractions with links to rules.
Interactive Mathematics
Interactive Mathematics: Addition & Subtraction of Fractions
The addition and subtraction of algebraic expressions is presented with detailed examples and exercises for extra practice.
Math Is Fun
Math Is Fun: Fractions in Algebra
Students learn about fractions in algebra. Topics include adding, subtracting, multiplying, and dividing fractions. The resource consists of rules and examples related to operations with fractions.
Other
Chili Math: Adding and Subtracting Fractions With Different Denominators
Goes through the steps involved in adding and subtracting fractions with different denominators and provides examples.
Khan Academy
Khan Academy: Adding & Subtracting Negative Fractions
Practice adding and subtracting positive and negative fractions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: One Step Addition & Subtraction Equations: Fractions & Decimals
Practice solving equations in one step by adding or subtracting a number from both sides. These problems involve decimals and fractions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a...
CK-12 Foundation
Ck 12: 2.3 Adding and Subtracting Rational Expressions
This section explores the process for adding and subtracting rational expressions. It primarily focuses on how to identify and use the Least Common Denominator to combine fractions with rational expressions.
CK-12 Foundation
Ck 12: Algebra: Rational Numbers in Applications
[Free Registration/Login may be required to access all resource tools.] Solve real-world problems involving the addition and subtraction of fractions and evaluate change.
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: Fractions
This resource offers an overview of fractions from several aspects, including simplifying, reduced, mixed numbers and improper form, and basic operations. Examples and diagrams are included to help demonstrate each topic.
Math Medics
S.o.s. Math: Fractions: Addition
Explains step-by-step how to add fractions. Gives examples and exercises to practice this skill.
Shodor Education Foundation
Shodor Interactivate: Fraction Quiz
This activity allows the student to practice simplifying, converting, and multiplying decimals, percentages, and fractions. There are 3 levels of difficulty and the time limit may be set from no limit to 60 seconds. Additional...
Other
Chili Math: Adding and Subtracting Fractions With Same or Like Denominator
Features steps on how to add and subtract fractions with the same denominator.
Interactive Mathematics
Interactive Mathematics: Factoring and Fractions
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....
Math Planet
Math Planet: Monomials and Adding or Subtracting Polynomials
Gain an understanding of how to add or subtract polynomials by viewing an example and a video lesson.
Math Is Fun
Math Is Fun: Using Rational Numbers
This site offers simple examples for adding, subtracting, multiplying, and dividing rational numbers. It also provides examples of writing fractions in simplest form and as mixed numbers or improper fractions. Students can test their...