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Free Math Help
Free Math Help: Adding and Subtracting Rational Functions
Students learn how to add and subtract rational functions. The lesson consists of definitions, examples, and additional resources.
CK-12 Foundation
Ck 12: Algebra: Adding and Subtracting Rational Expressions
[Free Registration/Login may be required to access all resource tools.] This lesson covers adding and subtracting rational expressions when one of the denominators is the LCD. Students can look at guided notes and attempt practice problems.
Khan Academy
Khan Academy: Intro to Adding & Subtracting Rational Expressions
Learn how to add or subtract two rational expressions into a single expression.