Instructional Video

Add and Subtract Rational Expressions

Curated and Reviewed by Lesson Planet

Combine a video with the lesson on combining rational expressions. Young mathematicians first review how to add and subtract rational numbers. They then learn how to apply the same reasoning to add and subtract rational expressions by first rewriting each expression using a common denominator.

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CCSS: Designed
Instructional Ideas
  • Have the class create a graphic organizer showing the process for adding and subtracting rational expressions
Classroom Considerations
  • This is the third of five lessons in the Algebra II - Rational Expressions unit
  • Learners must be familiar with common denominators
  • This video is hosted on YouTube
  • Includes a practice packet with additional problems
  • Instructors will appreciate the separate answer key
  • None
Common Core