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Ch 26: 6th-8th Grade Algebra: Simplifying & Solving Rational Expressions

About This Chapter

The online video lessons in this chapter will allow you to teach your 6th - 8th grade students how to add and subtract rational expressions. The material in this chapter can teach your students to clear fractions, cancel like terms and flip fractions. Administer the quizzes and chapter examination to test your students' knowledge of rational expressions.

6th-8th Grade Algebra: Simplifying and Solving Rational Expressions - Chapter Summary

Explain the rules for working with rational expressions and fractions to your 6th - 8th grade students. The video lessons in this Simplifying and Solving Rational Expressions chapter cover the methods for factoring polynomial expressions, finding a common denominator and determining the least common multiple. The lessons include practice problems. Upon completion, you can give the multiple-choice quizzes to determine how well your students have learned the material.

Chapter Lessons and Objectives

Lesson Objective
How to Solve a Rational Equation Teachers explain the processes for solving rational equations.
How to Add and Subtract Rational Expressions Students learn to use the factoring and FOILing methods for adding and subtracting rational expressions.
Practice Adding and Subtracting Rational Expressions In this lesson, the process for adding and subtracting rational expressions is outlined.
How to Multiply and Divide Rational Expressions Instructors provide tips for multiplying and dividing rational polynomial expressions.
Multiplying and Dividing Rational Expressions: Practice Problems This lesson explains how to multiply and divide larger rational expressions, and it includes practice problems.
Rational Equations: Practice Problems Students are taught to solve rational equations and they complete examples.

6 Lessons in Chapter 26: 6th-8th Grade Algebra: Simplifying & Solving Rational Expressions
How to Solve a Rational Equation

1. How to Solve a Rational Equation

A rational equation is one that contains fractions. Yes, we will be finding a common denominator that has 'x's. But no worries! Together we will use a process that will help us solve rational equations every time!

How to Add and Subtract Rational Expressions

2. How to Add and Subtract Rational Expressions

Adding and subtracting rational expressions brings everything you learned about fractions into the world of algebra. We will mix common denominators with factoring and FOILing.

Practice Adding and Subtracting Rational Expressions

3. Practice Adding and Subtracting Rational Expressions

Adding and subtracting rational expressions can feel daunting, especially when trying to find a common denominator. Let me show you the process I like to use. I think it will make adding and subtracting rational expressions more enjoyable!

How to Multiply and Divide Rational Expressions

4. How to Multiply and Divide Rational Expressions

Multiplying and dividing rational polynomial expressions is exactly like multiplying and dividing fractions. Like fractions, we will reduce. With polynomial expressions we use factoring and canceling. I also give you a little mnemonic to help you remember when you need a common denominator and when you don't.

Multiplying and Dividing Rational Expressions: Practice Problems

5. Multiplying and Dividing Rational Expressions: Practice Problems

Let's continue looking at multiplying and dividing rational polynomials. In this lesson, we will look at a couple longer problems, while giving you some practice multiplying and dividing.

Rational Equations: Practice Problems

6. Rational Equations: Practice Problems

Mario and Bill own a local carwash and have several complex tasks that they must use rational equations to solve for an answer. Enjoy learning how they solve these equations to help them with some of their day-to-day tasks.

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Other Chapters

Other chapters within the 6th-8th Grade Math: Practice & Review course

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