Khan Academy
Khan Academy: Add and Subtract Fractions Challenge
Challenge problems involving adding and subtracting fractions that have unlike denominators. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Ducksters
Ducksters: Kids Math: Adding and Subtracting Fractions
Students learn about adding and subtracting fractions including steps, tips, and example problems.
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.
McGraw Hill
Glencoe: Self Check Quizzes 3 Add and Subtract Fractions With Unlike Denominator
Use Glencoe's Math Course 3 randomly generated self-checking quiz to test your knowledge of adding and subtracting fractions with unlike denominators. Each question has a "Hint" link to help. Choose the correct answer for each problem....
E-learning for Kids
E Learning for Kids: Math: Husky Sled: Fractions and Decimals
In this interactive website students practice various skills including adding fractions with common denominators, adding fractions with different denominators, adding decimals, finding equivalent fractions, and calculating averages.
Cool Math
Coolmath: Coolmath4kids: Adding and Subtracting Fractions With Whole and Mixed Numbers
Short tutorial explaining how to add and subtract fractions, whole numbers, and mixed numbers. Includes example problems to try.
Khan Academy
Khan Academy: Add Fractions With Unlike Denominators
Practice adding fractions that have different denominators. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Add and Subtract Fractions
This Math Page tutorial explains how to add and subtract fractions and features a practice section at the very end of the lesson.
McGraw Hill
Glencoe Mathematics: Online Study Tools: Adding and Subtracting Unlike Fractions
This site gives a short interactive quiz which allows students to self-assess their understanding of the concept of adding and subtracting unlike fractions.
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.
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,...
Khan Academy
Khan Academy: Add and Subtract Fractions: Word Problems 1
Practice solving word problems by adding and subtracting fractions with like denominators. Gaby ate 2 slices of pie and Daniel ate 2. If there were 10 slices of pie all together, what fraction did they eat? Students receive immediate...
Doina Popovici
Math Play: Fractions Jeopardy
Assess your knowledge of adding, subtracting, multiplying, and dividing fractions with a game of jeopardy.
Khan Academy
Khan Academy: Subtracting Fractions With Unlike Denominators
Practice subtracting fractions that have different denominators. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
National Council of Teachers of Mathematics
The Math Forum: "Make One" Operations W Fractions Game
This card game will help students review the basic operations with fractions. The materials needed, the rules of the game, and several follow-up activities are provided here for the teacher as a lesson plan.
Quia
Ixl Learning: Fractions Overview
Brush up on your math skills relating to fractions then try some practice problems to test your understanding.
Primary Resources
Primary Resources: Fractions
An extensive selection of teacher resources dealing with fractions at many different levels. There are worksheets, PowerPoints, smartboard presentations, activities, Excel, Word, and pdf files for the teacher's use.
PBS
Pbs: Logical Leaps: Adding Rational Numbers on the Number Line
In this interactive, use logic to solve riddles involving a wallaby jumping contest. Add two consecutive jumps and place them on a number line, finding equivalent fractions and common denominators to do so. Backward jumps represent...
Calculator Soup
Calculator Soup: Fractions Average Calculator
This calculator finds the average of a set of fractions by adding all of the fractions and dividing by the number of fractions in the set. Enter positive or negative fractions, integers and mixed numbers and the calculator converts...
Other
Active Maths Limited: Adding & Subtracting Fractions: Whiteboard Resources
This is an excellent resource to visually illustrate adding and subtracting fractions by finding the lowest common denominator.
AAA Math
Aaa Math: All About Fractions
A comprehensive tutorial that contains the following operations: adding fractions, comparing fractions, converting fractions, multiplying fractions, reducing fractions and subtracting fractions. Explanations, interactive practices and...
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Fraction Basics
Gives a very basic overview of fractions and their parts. Discusses adding, multiplying, and finding a common denominator.
Elias Saab
Math Drills: Fraction Operations Quiz #2
An interactive quiz which provides students with two (more challenging) fractions and a randomly selected operation sign between them. Students input their solution and have the program evaluate it. Hints are available if the student...
Math Is Fun
Math Is Fun: Common Denominator
Learn the "easiest method" for finding the common denominator of two fractions with different denominators. View animated examples and look over the steps that it takes to find a common denominator and add two fractions.