Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Estimation With Mixed Number/fraction Subtraction

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Estimate differences of fractions and mixed numbers
Interactive
Visual Fractions

Visual Fractions: Addition of Like Fractions With Circle Models

For Students 3rd - 8th Standards
Brush up on your fraction addition skills with this interactive game. Practice adding fractions and mixed numbers with common denominators. Don't worry! If you need a little assistance, examples and explanations are included.
Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Fraction and Mixed Number Comparison Grade 7

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Compare and order fractions and mixed numbers using inequality symbols
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Making S'mores

For Teachers 5th - 8th Standards
The purpose of this instructional task is to motivate a discussion about adding fractions and the meaning of the common denominator. The different parts of the task have students moving back and forth between the abstract representation...
Activity
Lawrence Hall of Science

The Math Page: Skill in Algebra: Skill in Algebra: Algebraic Fractions

For Students 9th - 10th
Explains how to find a common denominator between two rational expressions and how to reduce a fraction that involves factoring. There are example problems solved, problems for the student to attempt, and answers to the student problems....
Interactive
Visual Fractions

Visual Fractions: Add Fractions With Number Line or Circle Models

For Students 3rd - 8th Standards
This site is provided for by Visual Fractions. Add mixed numbers with like denominators using circles. Click on the "Explain" button to understand the answer.
Unit Plan
PBS

Pbs: Logical Leaps: Adding Fractions and Decimals From 0 to 1 on the Vertical Number Line

For Students 6th - 8th
In this interactive, use logic to solve riddles involving flea circus high jumps. Then, add two consecutive jumps and place them on a vertical number line. This often requires you to find equivalent fractions with common denominators....
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Khan Academy

Khan Academy: Add and Subtract Mixed Numbers (No Regrouping)

For Students 3rd - 5th Standards
Practice adding and subtracting mixed numbers with common (like) denominators. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unknown Type
Illustrative Mathematics

Illustrative Mathematics: 4.nf Peaches

For Teachers 3rd - 5th Standards
This task provides a context where it is appropriate for students to subtract fractions with a common denominator; it could be used for either assessment or instructional purposes. Aligns with 4.NF.B.3.c.
Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Differences of Mixed Numbers Without Renaming

For Students 6th
[Free Registration/Login may be required to access all resource tools.] Find the difference of mixed numbers with common denominators.
Interactive
ABCya

Ab Cya: Adding Fractions

For Students 4th - 6th Standards
Adding fractions is a fun game for kids to practice adding fractions with like denominators. Select two fractions that add to the number 1 and watch the monster grow! Help the monster reach full size as fast as you can!
Handout
Other

Help With Fractions: Subtracting Fractions

For Students 3rd - 8th Standards
The rules for subtracting fractions with like or unlike denominators are clearly explained at this website. Even mixed number subtraction is tackled! This is an excellent place to get step by step explanations for working with fractions.
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...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 5.nf Do These Add Up?

For Teachers 5th - 8th
This task addresses common errors that students make when adding fractions. Aligns with 5.NF.A.2.
Unit Plan
Other

Project Happy Child: Adding Fractions Story & Worksheets

For Teachers 3rd - 5th Standards
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.
Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: Intermediate Algebra: Complex Fractions

For Students 9th - 10th
This tutorial shows two different ways in which you can simplify complex fractions. Works through examples step-by-step and gives some practice problems.
Activity
Purple Math

Purplemath: Complex Fractions

For Students 9th - 10th
A brief lesson, including good examples, on complex fractions is provided by PurpleMath.
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Common Core Sheets

Common Core Sheets: Number and Operations Fractions 5.nf.2 Worksheets

For Teachers 5th
Worksheets provide practice with solving adding and subtracting fractions with answer keys are provided. You can even create your own worksheet or flash cards.
Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Addition of Rational Numbers

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Represent sums and differences on a number line and add and subtract rational numbers.
PPT
Sophia Learning

Sophia: Adding Mixed Numbers

For Students 6th - 8th
Students watch a video lesson about adding mixed numbers. The tutorial includes detailed examples that demonstrate two methods for solving.
Unit Plan
Math Is Fun

Math Is Fun: Subtraction of Fractions

For Students 3rd - 5th Standards
This very basic website gives simple, easy steps on how to subtract fractions with the same denominator and what to do when they have different denominators.
Activity
Teaching Treasures Publications

Teaching Treasures: Year Five Math (Page 5)

For Students 3rd - 8th Standards
Sharpen your computation skills with this interactive worksheet. The focus is adding and subtracting fractions with like and unlike denominators and reducing to lowest terms. Problems are set up horizontally and answers can be checked...
Unit Plan
Khan Academy

Khan Academy: Add and Subtract Fractions Word Problems

For Students 4th - 6th Standards
Practice solving fraction addition and subtraction word problems. The fractions in these problems have unlike denominators. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...
Unknown Type
Khan Academy

Khan Academy: Add and Subtract Fractions: Word Problems

For Students 3rd - 5th Standards
In this exercise, students practice adding and subtracting fractions with unlike denominators word problems. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.