Unit Plan
PBS

Pbs: Logical Leaps: Adding Rational Numbers on the Number Line

For Students 6th - 8th
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...
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...
Unit Plan
Khan Academy

Khan Academy: Add and Subtract Fractions: Word Problems 2

For Students 3rd - 5th Standards
Practice solving word problems by adding and subtracting fractions. The fractions used in these problems have like (common) denominators. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a...
eBook
CK-12 Foundation

Ck 12: 2.3 Adding and Subtracting Rational Expressions

For Students 9th - 10th Standards
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.
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CK-12 Foundation

Ck 12: Add and Subtract With Different Denominators Word Problems Practice

For Students 4th - 5th Standards
[Free Registration/Login may be required to access all resource tools.] Practice adding and subtracting fractions with different denominators.
Unknown Type
CK-12 Foundation

Ck 12: Add and Subtract Fractions in Inequalities Practice

For Students 4th - 5th Standards
[Free Registration/Login may be required to access all resource tools.] Practice adding and subtracting fractions in these problems that include inequalities.
Interactive
Calculator Soup

Calculator Soup: Fractions Calculator

For Students 9th - 10th
Use this fraction calculator for adding, subtracting, multiplying and dividing fractions. Answers are fractions in lowest terms or mixed numbers in reduced form.
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.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: N Rn Sums of Rational and Irrational Numbers

For Teachers 9th - 10th Standards
The goal of this task is to examine sums and products of rational and irrational numbers. One important property of rational numbers is that their decimals always terminate or repeat: using a slightly different formulation, a rational...
Interactive
Calculator Soup

Calculator Soup: Mixed Number to Percent Calculator

For Students 9th - 10th
Convert mixed numbers or mixed fractions to percents. The mixed number to percentage calculator finds the decimal equivalent by finding the decimal value of the fraction, adding the decimal to the whole number part of the mixed number,...

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