National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Rationalizing the Denominator
Site gives an explaination on why we rationalize the denominator.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Rationalizing the Denominator
Tells how to rationalize the denominator when the radical has an odd index.
Oswego City School District
Regents Exam Prep Center: Millionaire Radicals
In a format like TV's "Who Wants to Be a Millionaire," students answer math questions about radicals to earn points and help their group win the game. Teachers need to create their own question bank, which allows this game to be used for...
Sophia Learning
Sophia: Using Conjugates to Rationalize Denominators: Lesson 2
This lesson provides practice examples that use conjugates to rationalize denominators. It is 2 of 6 in the series titled "Using Conjugates to Rationalize Denominators."
Mangahigh
Mangahigh: Number: Rationalize a Denominator
Test your knowledge of rationalizing a denominator by multiplying radicals.
CK-12 Foundation
Ck 12: Algebra: Simplification of Radical Expressions
[Free Registration/Login may be required to access all resource tools.] Simplify radical expressions by using distribution and rationalizing the denominator.
Sophia Learning
Sophia: Introduction to Conjugates That Rationalize Denominators
Explore conjugates and conjugate pairs in order to rationalize denominators. Assessment to follow tutorial.
Sophia Learning
Sophia: Introduction to Conjugates That Rationalize Denominators
Explore conjugates and how they are used to rationalize denominators. Assess learning with a quiz.
Cool Math
Coolmath: Rationalizing Denominators
This prealgebra lesson explains how to rationalize the denominator.
Integrated Publishing
Integrated Publishing: Roots, Exponents, and Radicals
Information on powers, roots, exponents, and radicals.
Help Algebra
Help algebra.com: How to Rationalize the Denominator
What do you do if the denominator contains a radical? This article explains how to rationalize a denominator that contains square roots, higher roots and the sums and differences of square roots. The examples also include problems that...
Help Algebra
Help algebra.com: Rationalizing the Denominator
Learn to simplify radical expressions by removing radicals from denominators. The demonstration includes both single radicals and binomials that require the use of a conjugate.
Jim Loy
Jimloy.com: Rationalizing the Denominator
Read an explanation on how to rationalize the denominator using an example. Using exponents instead of the radical sign, the examples may be difficult to read.
Oswego City School District
Regents Exam Prep Center: Multiplication and Division of Radicals
Learn the steps necessary for multiplying and dividing radicals. The examples are easy to follow.
Other
Karl's Calculus Tutor: The Difference of Squares
This site provides a general overview of the special case of factoring known as the difference of squares. This procedure highlights rationalizing the denominator.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Rationalizing the Denominator
Find a quick, concise explanation of how to rationalize the denominator. Examples are given and clearly explained.
Math Is Fun
Math Is Fun: Rationalize the Denominator
The tutorial examines how to rationalize the denominator. The resource consists of detailed examples and explanations about the algebra concept.
Interactive Mathematics
Interactive Mathematics: Simplest Radical Form
The laws for simplifying radicals are presented along with several examples and exercises that put the laws to practice.
Integrated Publishing
Integrated Publishing: Rationalizing Denominators
Site provides an example on rationalizing denominators plus some practice exercises.