# Rational Equations Using Proportions

## Cross-multiply to solve

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Rational Equations Using Proportions

by CK-12 //basic
Learn how to solve rational equations using proportions.
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## Clearing Denominators in Rational Equations

Learn how to solve rational equations by clearing denominators.
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## Solving Rational Equations using Cross-Multiplication

This lesson covers solving rational equations using cross-multiplication.
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## Solving Rational Equations using the LCD

This lesson covers solving rational equations using the LCD of the denominators to eliminate them.
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## Rational Equations Using Proportions

Use cross products and LCDs to solve rational equations.
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## Rational Equations Using Proportions

Use cross products and LCDs to solve rational equations.
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## Rational Equations Using Proportions

by Susan Sudberry //basic
Learn how to solve rational equations using proportions.
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## Solving Rational Equations Part I

by EPISD Algebra 2 Team //at grade
This lesson covers solving rational equations using cross-multiplication.
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## Solving Rational Equations: Proportions

This lesson covers solving rational equations using cross-multiplication.
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## Solving Rational Equations Part II

by EPISD Algebra 2 Team //at grade
This lesson covers solving rational equations using the LCD of the denominators to eliminate them.
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## SLT 25: Solve simple rational equations in one variable.

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## SLT 22: Graphing inverse variation in the form of k divided by x squared

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## Solving Rational Equations using the LCD

This lesson covers solving rational equations using the LCD of the denominators to eliminate them.
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• Video

## Solving and Writing Proportions - Overview

by CK-12 //basic
Overview
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• Video

## Solving Rational Equations

by CK-12 //basic
Learn how to solve rational equations.
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• Video

## Solutions of Rational Equations: A Sample Application

This video demonstrates a sample of the solutions of rational equations.
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• Video

## Solving and Writing Proportions - Example 1

by CK-12 //basic
Solving Proportions by Finding the Equivalent Ratio
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## Solving Rational Equations: An Explanation of the Concept

This video provides an explanation of the solutions of rational equations.
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## Solving and Writing Proportions - Example 2

by CK-12 //basic
Solving Proportions by Using Cross Products
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## Solving Rational Equations by Cross Multiplying

by Apoorva Handigol //basic
Learn how to solve rational equations by using the method of cross multiplication in this great video.
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## Solving and Writing Proportions - Example 3

by CK-12 //basic
Writing Proportions Given Math Analogies
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• Video

## Solving Rational Equations using the LCD Method

by Apoorva Handigol //basic
This great lecture video explains how to use the Least Common Denominator to solve equations involving rational expressions.
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• Video

## Solving and Writing Proportions - Example 4

by CK-12 //basic
Solving Proportions Given Math Analogies
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• Critical Thinking

## Rational Equations Using Proportions Discussion Questions

A list of student-submitted discussion questions for Rational Equations Using Proportions.
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• Critical Thinking

## Clearing Denominators in Rational Equations Discussion Questions

A list of student-submitted discussion questions for Clearing Denominators in Rational Equations.
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• Real World Application

## Out of Proportion

Learn how the number of representatives for each state in the U.S. House of Representatives is determined.
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• Real World Application

## Workers' Comp

Students apply their knowledge of subtracting rational fractions to compare two different models for a company to implement to reduce the number of on-site injuries.
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• Real World Application

## A Spoonful of Sugar Helps the Medicine Go Down...

Find out how nurses determine the right amount of medication to give children.
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• Study Guide

## Solving Rational Equations Study Guide

This study guide gives an overview on simplifying rational expressions, solving rational equations, and removable zeros.
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• Flashcards

## Solving Rational Equations using Cross-Multiplication

by Kyle Bardman //basic
These flashcards will help you better understand Algebra II with Trigonometry Concepts.
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• Flashcards

## Solving Rational Equations using the LCD

by Kyle Bardman //basic
These flashcards will help you better understand Algebra II with Trigonometry Concepts.
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