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# Sums and Differences of Rational Expressions with Unequal Denominators

## Combine fractions including unlike denominators with variables

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 Expression Basics

by EPISD Precalculus Team //at grade
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## Adding and Subtracting Rational Expressions Part III

by EPISD Algebra 2 Team //at grade
This lesson covers adding and subtracting rational expressions where the denominators are different.
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## Adding and Subtracting Rational Expressions with Unlike Denominators

This lesson covers adding and subtracting rational expressions where the denominators are different.
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• Video

## Adding and Subtracting Rational Expressions with Unlike Denominators

Two examples of how to add and subtract rational expressions when the denominators are different.
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• Flashcards