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.
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Shmoop University

Shmoop: Fractions & Decimals: Reducing Fractions

For Students 9th - 10th
The mathematics resource explores how to reduce fractions. Students examine the topic through class notes and examples. Practice problems with solutions are available to check for comprehension of the concept.
Interactive
Doina Popovici

Math Play: Baseball Math: Simplifying Fractions Baseball Game

For Students 4th - 6th
Try to hit a home run by simplifying these fractions in this online game.
Interactive
Doina Popovici

Math Play: Simplifying Fractions Soccer Game

For Students 4th - 6th
An online game where students simplify fractions to get a chance to kick the soccer ball into the goal!
Activity
Help Algebra

Help algebra.com: Simplifying Rational Expressions

For Students 9th - 10th Standards
The process of factoring and canceling is used to simplify, multiply, and divide rational expressions. Adding and subtracting rational expressions is also demonstrated, including finding common denominators.
Unit Plan
AAA Math

Aaa Math: Multiplying Fractions

For Students 4th - 6th Standards
This lesson teaches students to multiply fractions with other fractions and reduce to the lowest terms. It also offers a learning game to provide practice.
PPT
Sophia Learning

Sophia: Converting Improper Fractions

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

Ducksters: Kids Math: Simplifying and Reducing Fractions

For Students 3rd - 8th Standards
Understand the steps to do when simplifying and reducing fractions including finding the greatest common factor on this website.
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Shodor Education Foundation

Shodor Interactivate: Fraction Quiz

For Students 9th - 10th
This activity allows the student to practice simplifying, converting, and multiplying decimals, percentages, and fractions. There are 3 levels of difficulty and the time limit may be set from no limit to 60 seconds. Additional...
Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: College Algebra: Complex Rational Expressions

For Students 9th - 10th Standards
Learn to simplify complex fractions via this tutorial that features various methods for simplifying, example problems with step-by-step solutions, and practice problems, complete with answers and discussions.
Handout
Varsity Tutors

Varsity Tutors: Hotmath: Algebra Review: Reducing Fractions (Simplest Form)

For Students 9th - 10th Standards
Find a quick, concise explanation of how to find the simplest or lowest form of a fraction. An example is given and clearly explained.
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Paul Dawkins

Paul's Online Notes: Rational Expressions: Practice Problems

For Students 9th - 10th
Practice exercise reviews how to reduce a rational expression to lowest terms and how to add, subtract, multiply and divide rational expressions.
Unknown Type
Lesson Tutor

Lesson Tutor: Divisibility Rules Worksheet

For Students 3rd - 8th
A worksheet of twenty practice problems is given here for students wishing more help with the concept of reducing fractions down to their lowest terms. The first several questions are accompanied with explanation, and a link to the...
Interactive
Doina Popovici

Math Play: Multiplying Fractions Millionaire Game

For Students 4th - 6th
An online millionaire game where students multiply fractions and reduce them to their lowest term to answer questions and gain money!
Unit Plan
Wyzant

Wyzant: Fraction Simplifying Calculator

For Students 9th - 10th
This WyzAnt applet allows the user to input fractions--improper or mixed numbers--and have the calculator reduce the fraction or convert it into a mixed number. A good resource for checking students work.
Interactive
Shodor Education Foundation

Shodor Interactivate: Fraction Four

For Students 6th - 8th Standards
Students play a generalized version of connect four, gaining the chance to place a piece after simplifying fractions, converting fractions to decimals and percentages, and answering algebra questions involving fractions. Choose...
Website
Discovery Education

Discovery Education: Web Math: General Math

For Students 3rd - 8th
An extraordinary site that will help you with your math homework. Presented in a format that is both easy to understand and educational. Navigate through numerous instant-answer, self-help math solvers to help you figure out your math...
Graphic
Curated OER

Visual Fractions:strict Fraction Subtraction With Circles

For Students 3rd - 8th
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.