Handout
Paul Dawkins

Paul's Online Notes: Algebra: Preliminaries: Rational Expressions

For Students 9th - 10th Standards
Detailed math tutorial features notes and examples that define rational expressions and investigate how to reduce a rational expression to lowest terms, add, subtract, multiply, and divide rational expressions.
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...
Activity
Cool Math

Coolmath: Fractions How to Reduce Fractions

For Students 6th - 8th
Learn how to reduce fractions.
Handout
Cool Math

Coolmath: Coolmath4kids: Simplifying Fractions

For Students 4th - 5th Standards
Short tutorial explaining how to simplify fractions. Includes sample problems to try.
Activity
AAA Math

Aaa Math: Percents to Fractions

For Students 3rd - 8th
This site explains how to convert percents to fractions. Games and exercises are provided to practice the skill.
Unit Plan
Education Development Center

Tune in to Learning: Math Lesson Working With Ratios

For Students 2nd - 5th
Did you know that chefs must know how to use ratios in order to prepare meals? Learn the value of understanding how to write ratios, ratio proportionality, and ratios in lowest terms in this interactive lesson. Based on real world...
Activity
AAA Math

Aaa Math: How to Determine a Ratio

For Students 6th - 8th Standards
Learners practice writing ratios in lowest terms. The resource consists of a tutorial and self-check practice problems.
Unit Plan
Other

Project Happy Child: Simplifying Fractions Worksheets

For Teachers 3rd - 6th Standards
At this location there are three simple stories that explain the basic concept of simplifying fractions or finding their lowest terms. Then there are 12 worksheets that increase in difficulty to help students practice this concept.
Interactive
Visual Fractions

Visual Fractions: Subtract and Simplify Fractions With Circle Models

For Students 3rd - 8th Standards
Use this interactive site from Visual Fractions to practice subtraction with fractions using circles. You will need to answer the questions with mixed numbers in lowest terms.
Interactive
Calculator Soup

Calculator Soup: Ratio to Fraction Calculator

For Students 9th - 10th Standards
Convert ratios to fractions. The ratio to fraction calculator finds fraction equivalents of ratio terms and reduces the fractions to simplest form.
Unit Plan
Math Medics

S.o.s. Math: Reducing Fractions

For Students 9th - 10th
Explains step-by-step how to reduce fractions. Gives examples and exercises to practice this skill.
Unit Plan
Khan Academy

Khan Academy: Reducing Rational Expressions to Lowest Terms

For Students 9th - 10th Standards
Learn what it means to reduce a rational expression to lowest terms, and how it's done!
Unit Plan
Khan Academy

Khan Academy: Intro to Rational Expressions

For Students 9th - 10th Standards
This lesson will introduce you to rational expressions. You will learn how to determine when a rational expression is undefined and how to find its domain.
Unit Plan
Help Algebra

Help algebra.com: Fractions

For Students 9th - 10th
This resource offers an overview of fractions from several aspects, including simplifying, reduced, mixed numbers and improper form, and basic operations. Examples and diagrams are included to help demonstrate each topic.
Unknown Type
Other

Project Happy Child: Fractions and Percents

For Students 3rd - 8th
Miss Walker explains to Bart the fine details of the relationship between fractions and percents. At the end of the discourse is a link, "Free worksheets for percentages," where you can go to print off some practice sheets.
Whiteboard
ClassFlow

Class Flow: Reducing or Simplifying Fractions

For Teachers 3rd - 8th Standards
[Free Registration/Login Required] This flipchart introduces how to simplify or reduce a fraction to the lowest terms. Prerequisites include: multiplying fractions, factoring, introduction to the concept of the Greatest Common Factor.
Interactive
Visual Fractions

Visual Fractions: Strict Fraction Division With Lines

For Students 4th - 6th
Use this interactive site from Visual Fractions to divide fractions. Your answers need to be given in lowest terms. Explanations are available for each question, and you receive immediate feedback for your answers.
Website
National Council of Teachers of Mathematics

The Math Forum: Height to Weight Ratio

For Students 3rd - 8th Standards
A student asks Dr. Math, "If I have a friend that weighs 155 pounds and is five feet, four inches tall, what is his height-to-weight ratio?" Find out how Dr. Math solves this problem and get a better understanding of the concept of ratio.
Unit Plan
The Math League

The Math League: Fractions

For Students 9th - 10th
This tutorial covers all types of fractions with simple explanations on how to work with them.
Handout
National Council of Teachers of Mathematics

The Math Forum: Ratios and Fractions

For Students 3rd - 8th Standards
A seventh-grade student is having trouble understanding ratios, fractions, and simplest form. Dr. Math to the rescue! Real-world, easy to grasp examples.
Handout
AAA Math

Aaa Math: Simplifying Fractions

For Students 9th - 10th
This site explains how to simplify fractions, then offers problems and games to practice this skill.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Reducing to Simplest Form

For Students 4th - 5th Standards
[Free Registration/Login may be required to access all resource tools.] For this learning module, students are asked to reduce fractions to their lowest terms. Includes video demonstrating a sample problem [1:00] and a set of practice...
Activity
Teaching Treasures Publications

Teaching Treasures: Year Five Math (Page 3)

For Students 3rd - 8th Standards
An interactive worksheet that focuses on adding and subtracting fractions. The worksheet covers concepts such as mixed numbers, reducing to lowest terms, and changing mixed numbers to improper fractions. Problems are set up horizontally...
Unit Plan
PBS

Pbs: Area Models for Multiplication of Fractions

For Students 3rd - 5th Standards
Use area models to show a visual representation of the product of two fractions. This interactive exercise focuses on multiplying fractions and reducing them when possible.