Curated OER
Mixing Fertilizer
Your young landscapers do concentration calculations in this problem dealing with mixing fertilizer. Learners use and analyze rational expressions within this context.
Illustrative Mathematics
Dan’s Division Strategy
Can Dan make a conjecture about dividing fractions with the same denominators? That is what your scholars are to determine. They must show that if the statement is true, they understand how the quantities were determined, and how...
Illustrative Mathematics
Combined Fuel Efficiency
Practice simplifying complex fractions and long division of polynomials with this brief exercise. These four questions make a challenging warm-up activity or a short, but comprehensive, follow-up after a detailed lesson on algebraic...
Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Multiplying and Dividing Rational Expressions
Twenty-seven problems present a variety of practice multiplying and dividing rational expressions. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View...
Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Multiplying and Dividing Rational Expressions
Twenty-one problems present a variety of problems multiplying or dividing and then simplifying rational expressions. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem...
Texas Instruments
Texas Instruments: Rational Expression Multiplication
This StudyCards set uses guided discovery concepts to develop ideas for functions operations, building from rational expression multiplication and division algorithms.
Help Algebra
Help algebra.com: Simplifying Rational Expressions
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.
Lawrence Hall of Science
The Math Page: Skill in Algebra: Multiplying & Dividing Algebraic Fractions
Here is a site that clearly and thoroughly explains multiplying and dividing algebraic fractions (rational expressions). There are example problems solved, problems for the student to attempt, and answers to the student problems. Point...
University of Saskatchewan (Canada)
University of Saskatchewan: Partial Fraction Decompositions
A short lesson on rational expressions. Includes a definition, examples, and exercises to choose from from introductory, moderate, or advanced.
Interactive Mathematics
Interactive Mathematics: Multiplication & Division of Fractions
Starting with numerical expressions, this demonstration shows how to simplify algebraic expressions using multiplication and division. Examples are included for practicing the concept.
Lawrence Hall of Science
The Math Page: Skill in Algebra: Multiplying and Dividing Radicals
Here is a site that clearly and thoroughly explains multiplying and dividing radical expressions. There are example problems solved, problems for the student to attempt, and answers to the student problems. Point this site out to...
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Dividing Polynomials
Math Forum offers an example of how to simplify a complex rational expression by factoring.
Interactive Mathematics
Interactive Mathematics: Multiplying and Dividing Radicals
The methods necessary for multiplying and dividing expressions that contain radicals are presented through several examples and exercises.
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.
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...