Rationalizing the denominator

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Taught by mrbrianmclogan
  • Currently 4.0/5 Stars.
6260 views | 1 rating
Part of video series
Meets NCTM Standards:
Lesson Description:

Here I show how to simplify an expression.

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Questions answered by this video:
  • How do you rationalize the denominator of a fraction?
  • What does it mean to rationalize the denominator?
  • How do you get the square root out of the denominator?
  • How do you simplify 4/(square root of 3)?
  • Why isn't 4/radical(3) simplified?
  • What is an irrational number?
  • What is a radical?
  • What can you multiply a fraction by to get rid of the square root in the denominator without changing the fraction?
  • Staff Review

    • Currently 4.0/5 Stars.
    This lesson does a good job of showing how to eliminate a radical from the denominator of a fraction. This is a very useful skill and is explained very well in this lesson.