Unit Plan
AAA Math

Aaa Math: Dividing Fractions by Fractions

For Students 5th - 7th Standards
Students review how to divide fractions by fractions. Practice problems are included.
Interactive
Visual Fractions

Visual Fractions: Strict Fraction Multiplication With Lines

For Students 4th - 6th Standards
Use this interactive site from Visual Fractions to multiply fractions. Answers need to be given in lowest terms. Explanations are available for each question, and immediate feedback is provided.
Lesson Plan
Homeschool Math

Homeschool Math: Simplifying Fractions

For Teachers 5th Standards
5th grade lesson explains how to simplify a fraction.
Handout
Calculator Soup

Calculator Soup: Simplifying Fractions Calculator

For Students 9th - 10th
Convert improper fractions to mixed numbers in simplest form. This calculator also simplifies proper fractions by reducing to lowest terms and showing the work involved.
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
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
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
Cool Math

Coolmath: Fractions How to Reduce Fractions

For Students 6th - 8th
Learn how to reduce fractions.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Reducing Simplest Form Word Problems

For Students 4th - 5th Standards
[Free Registration/Login may be required to access all resource tools.] For this learning module, students must solve word problems where they are asked to reduce fractions to their lowest terms. Includes video demonstrating a sample...
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.
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
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
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.
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.
PPT
Sophia Learning

Sophia: Converting Improper Fractions

For Students 5th - 9th
This lesson demonstrates how to rewrite an improper fraction as a mixed number.
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.
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.
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.
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
Calculator Soup

Calculator Soup: Complex Fractions Calculator

For Students 9th - 10th
A complex fraction is a fraction that contains another fraction. Use this Complex Fractions Calculator to do math and add, subtract, multiply and divide complex fractions. Fraction answers are provided in reduced form (lowest terms).
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.
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.
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.