Calculator Soup
Calculator Soup: Lcd Calculator Least Common Denominator
Use this Least Common Denominator Calculator to find the lowest common denominator (LCD) of fractions, integers and mixed numbers. Finding the LCD is important because fractions need to have the same denominator when you are doing...
Math Is Fun
Math Is Fun: Comparing Fractions
The learning activity examines how to compare fractions. Topics include the decimal method and same denominator method. The resource consists of explanations and examples with solutions.
Illustrative Mathematics
Illustrative Mathematics: 3.nf Comparing Fractions
The purpose of this task is for students to compare fractions using common numerators and common denominators and to recognize equivalent fractions. Aligns with CCSS.Math.Content.3.NF.A.3.a Understand two fractions as equivalent (equal)...
Math Is Fun
Math Is Fun: Subtraction of Fractions
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.
Math Is Fun
Math Is Fun: Addition of Fractions
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.
AAA Math
Aaa Math: Subtracting Fractions With the Same Denominator
This site describes how to subtract fractions with like denominators. It provides exercises and games to practice the skill.
Other
Chili Math: Adding and Subtracting Fractions With Same or Like Denominator
Features steps on how to add and subtract fractions with the same denominator.
Khan Academy
Khan Academy: Add and Subtract Fractions Word Problems
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...
Khan Academy
Khan Academy: Add and Subtract Fractions: Word Problems
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.
Cool Math
Coolmath: Coolmath4kids: Subtract Fractions With Like Denominators
Demonstrates how to subtract fractions where the denominators are the same. Includes sample problems to try.
Quia
Quia: Equivalent Fractions
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.
Math Is Fun
Math Is Fun: Equivalent Fractions
This very basic website gives simple easy steps on how to find equivalent fractions with practice questions at the end. CCSS.Math.Content.3.NF.A.3.a Understand two fractions as equivalent (equal) if they are the same size, or the same...
Illustrative Mathematics
Illustrative Mathematics: 4.nf Making 22 Seventeenths in Different Ways
This task is a straightforward task related to adding fractions with the same denominator. The main purpose is to emphasize that there are many ways to decompose a fraction as a sum of fractions, similar to decompositions of whole...
CK-12 Foundation
Ck 12: Algebra: Addition and Subtraction of Rational Expressions
[Free Registration/Login may be required to access all resource tools.] Add and subtract rational expressions with the same denominator and different denominators.