Whiteboard
ClassFlow

Class Flow: Adding and Subtracting Fractions With Unlike Denominators

For Teachers 3rd - 5th Standards
[Free Registration/Login Required] This flipchart includes step by step directions on how to add or subtract fractions with unlike denominators. Practice session included with flipchart.
eBook
Houghton Mifflin Harcourt

Holt, Rinehart and Winston: Homework Help Independent Practice: Add and Subtract Rational Numbers 2

For Students 9th - 10th Standards
Get independent practice adding and subtracting fractions with unlike denominators. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
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Khan Academy

Khan Academy: Add and Subtract Fractions Word Problems

For Students 5th
Practice solving fraction addition and subtraction word problems. The fractions in these problems have unlike denominators.
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Khan Academy

Khan Academy: Add and Subtract Fractions Challenge

For Students 5th
Challenge problems involving adding and subtracting fractions that have unlike denominators.
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Khan Academy

Khan Academy: Use Visuals to Add and Subtract Fractions With Unlike Denominators

For Students 3rd - 5th Standards
In this exercise, students practice multiplying fractions by fractions. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Unit Plan
Math Is Fun

Math Is Fun: Common Denominator

For Students 3rd - 8th Standards
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.
PPT
Sophia Learning

Sophia: Adding Mixed Numbers

For Students 6th - 8th
This video tutorial reviews how to add mixed numbers with like and unlike denominators. The lesson includes detailed examples.
Website
Varsity Tutors

Varsity Tutors: Hotmath: Algebra Review: Add and Subtract Fractions

For Students 9th - 10th Standards
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.
Activity
Sophia Learning

Sophia: Adding and Subtracting Rational Expressions

For Students 9th - 10th Standards
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...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Egyptian Fractions

For Teachers 5th - 8th Standards
One goal of this task is to help students develop comfort and ease with adding fractions with unlike denominators. Another goal is to help them develop fraction number sense by having students decompose fractions. Aligns with 5.NF.A.1.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Jog a Thon

For Teachers 4th - 8th
The purpose of this task is to present students with a situation where it is natural to add fraction with unlike denominators; it can be used for either assessment or instructional purposes. Aligns with 5.NF.A.1.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Salad Dressing

For Teachers 4th - 8th Standards
The purpose of this task is to have students add fractions with unlike denominators and divide a unit fraction by a whole number. This accessible real-life context provides students with an opportunity to apply their understanding of...
Handout
Homeschool Math

Homeschool Math: Adding and Subtracting Unlike Fractions

For Students 5th Standards
This fifth-grade lesson teaches how to add and subtract unlike fractions using a video presentation and visual models. [7:19] Includes practice exercises.
Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Addition of Fractions

For Students 8th
[Free Registration/Login may be required to access all resource tools.] Add and subtract fractions and mixed numbers with like and unlike denominators
Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Subtraction of Fractions

For Students 6th - 9th
[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...
Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Addition of Fractions

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Add fractions and mixed numbers with like and unlike denominators
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,...
Unit Plan
Math Is Fun

Math Is Fun: Addition of Fractions

For Students 3rd - 5th Standards
This very basic website gives simple, easy steps on how to add fractions with the same denominator and what to do when they have different denominators.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Addition and Subtraction of Rational Expressions

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Add and subtract rational expressions with the same denominator and different denominators.
Unit Plan
PBS

Pbs: Addition of Fractions Using a Visual Model

For Students 3rd - 5th Standards
Use a visual model to add fractions with unlike denominators. This video focuses on using an equivalent fractions chart to compare fractions and find the correct sum.
Interactive
Quia

Quia: Equivalent Fractions

For Students 3rd - 6th Standards
Use this Web site to practice finding equivalent fractions using a matching game format. CCSS.Math.Content.3.NF.A.3.a Understand two fractions as equivalent (equal) if they are the same size, or the same point on a number line.
Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Evaluation and Comparison of Powers

For Students 6th
[Free Registration/Login may be required to access all resource tools.] Evaluate and compare powers.