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Paul Dawkins
Paul's Online Notes: Algebra: Preliminaries: Rational Expressions
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.
Teaching Treasures Publications
Teaching Treasures: Year Five Math (Page 5)
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...
Cool Math
Coolmath: Coolmath4kids: Simplifying Fractions
Short tutorial explaining how to simplify fractions. Includes sample problems to try.
AAA Math
Aaa Math: Percents to Fractions
This site explains how to convert percents to fractions. Games and exercises are provided to practice the skill.
Education Development Center
Tune in to Learning: Math Lesson Working With Ratios
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...
AAA Math
Aaa Math: How to Determine a Ratio
Learners practice writing ratios in lowest terms. The resource consists of a tutorial and self-check practice problems.
Other
Project Happy Child: Simplifying Fractions Worksheets
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.
Visual Fractions
Visual Fractions: Subtract and Simplify Fractions With Circle Models
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.
Calculator Soup
Calculator Soup: Ratio to Fraction Calculator
Convert ratios to fractions. The ratio to fraction calculator finds fraction equivalents of ratio terms and reduces the fractions to simplest form.
Math Medics
S.o.s. Math: Reducing Fractions
Explains step-by-step how to reduce fractions. Gives examples and exercises to practice this skill.
Khan Academy
Khan Academy: Reducing Rational Expressions to Lowest Terms
Learn what it means to reduce a rational expression to lowest terms, and how it's done!
Khan Academy
Khan Academy: Intro to Rational Expressions
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.
Help Algebra
Help algebra.com: Fractions
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.
Other
Project Happy Child: Fractions and Percents
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.
ClassFlow
Class Flow: Reducing or Simplifying Fractions
[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.
Visual Fractions
Visual Fractions: Strict Fraction Division With Lines
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.
National Council of Teachers of Mathematics
The Math Forum: Height to Weight Ratio
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.
The Math League
The Math League: Fractions
This tutorial covers all types of fractions with simple explanations on how to work with them.
National Council of Teachers of Mathematics
The Math Forum: Ratios and Fractions
A seventh-grade student is having trouble understanding ratios, fractions, and simplest form. Dr. Math to the rescue! Real-world, easy to grasp examples.
AAA Math
Aaa Math: Simplifying Fractions
This site explains how to simplify fractions, then offers problems and games to practice this skill.
CK-12 Foundation
Ck 12: Elem Math: Reducing to Simplest Form
[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...
Teaching Treasures Publications
Teaching Treasures: Year Five Math (Page 3)
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...
PBS
Pbs: Area Models for Multiplication of Fractions
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.