Rationalizing a Denominator using a Conjugate

Rationalizing a Denominator using a Conjugate
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Taught by muchomath
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Created by and copyright of Larry Perez. Funded by the state of California through Saddleback College. More information on videos, resources, and lessons at Algebra2Go.
Learn to rationalize the denominator of a fraction with a radical in it by using a conjugate.

  • How do you rationalize a denominator?
  • What does it mean to rationalize the denominator of a fraction?
  • How do you rationalize a denominator using a conjugate?
  • How do you rationalize the denominator of sqrt(2)/(4 + sqrt(10))?
  • What is the conjugate of 4 + sqrt(10)?
This lesson shows you how to find the conjugate of a radical expression and then use the conjugate to rationalize the denominator of a fraction involving radicals. Each step is explained and written out.
  • Currently 4.0/5 Stars.
Reviewed by MathVids Staff on June 26, 2011.
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