Oswego City School District
Regents Exam Prep Center: Add and Subtract Rational (Fractional) Expressions
Add and subtract rational expressions like a pro after you use this site. Finding common denominators is made easy with this tutorial. Try the example problems to test your knowledge, then check the solutions. The 'Topic Index' page...
Sophia Learning
Sophia: Addition and Subtraction of Rational Expressions
Use the examples to find the least common denominator in order to add and subtract rational expressions.
Other
Mainland High School: Algebra Lab: Solving Rational Equations
Rational equations are examined through notes and practice problems. Hints and solutions are included with the practice problems.
![Chandler Unified School District: Algebra 2: Solving Rational Equations [Pdf] Activity](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Chandler Unified School District: Algebra 2: Solving Rational Equations [Pdf] Activity")
Other
Chandler Unified School District: Algebra 2: Solving Rational Equations [Pdf]
A 4-page student handout with exercises on solving rational equations using different methods.
Cool Math
Coolmath: Coolmath4kids: Adding and Subtracting Fractions With Different Denominators
Demonstrates how to add and subtract fractions where the denominators are different. Includes sample problems to try.
Khan Academy
Khan Academy: Common Denominators
Practice rewriting fractions to have the same denominator. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
CK-12 Foundation
Ck 12: Elem Math: Fractions With Different Denominators Word Problems
[Free Registration/Login may be required to access all resource tools.] In this learning module, students solve word problems where they must add and subtract fractions with different denominators. Includes video demonstrating a sample...
Better Lesson
Better Lesson: Adding and Subtracting With Fractions
Students add and subtract fractions using a common denominator.
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.
Quia
Ixl Learning: Least Common Multiple
Brush up on your math skills relating to the least common multiple then try some practice problems to test your understanding.
Quia
Ixl Learning: Adding Mixed Numbers
Brush up on your math skills pertaining to adding mixed numbers then try some practice problems to test your understanding.
Quia
Ixl Learning: Least Common Denominator
Brush up on your math skills relating to the least common denominator then try some practice problems to test your understanding.
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.
AAA Math
Aaa Math: Least Common Denominator
This site explains how to find the least common denominator. Also provides games to work on this skill.
AAA Math
Aaa Math: Adding Fractions With Different Denominators
This personal site explains how to add fractions with different denominators by finding the least common denominator. Gives problems and games to practice this skill.
Shodor Education Foundation
Shodor Interactivate: Fraction Adding and Subtracting
Use this discussion, provided by Shodor, to reinforce your knowledge on adding and subtracting fractions with unlike denominators.
Visual Fractions
Visual Fractions: Add Unlike Fractions With Number Line Models
Boost your ability to add number line fractions with unlike denominators with this interactive math game. A basic understanding of factors is key to success. Instructions with detailed examples are easily accessible.
Math Is Fun
Math Is Fun: Definition of Common Denominator
Definitiion of a common denominator with examples.
Oswego City School District
Regents Exam Prep Center: Practice With Rational Equations
Exercises are provided for practice with rational equations. Click the "answer" link to check your work.
Other
Project Happy Child: Adding Fractions Story & Worksheets
Miss Walker explains to Bart the fine details of adding fractions. At the end of the discourse is a link, "Return to Fractions index," where you can go to print off some practice sheets.
ClassFlow
Class Flow: Crct Review Day 3
[Free Registration/Login Required] This flipchart is a review for the Georgia CRCT. It covers math concepts of statistics, factors, least common denominator, and greatest common multiple.
ClassFlow
Class Flow: Finding the Common Denominator
[Free Registration/Login Required] This flipchart presents a method for finding the common denominator of fractions.
Math Is Fun
Math Is Fun: Least Common Denominator
The learning activity examines the least common denominator. Topics include fractions with denominators, common denominators, and the least common denominator. The resource consists of images, explanations, examples with solutions, and a...
University of Cambridge
University of Cambridge: Nrich: Fun Time
On this one page website sharpen your logic and fraction skills while working on this challenge. The solution is available to double check your solution.