Adding rational expressions with different denominators 2
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Part of video series
Lesson Description:
Shows how to add and subtract algebraic fractions by getting a common denominator.
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
Questions answered by this video:
- How do you add and subtract rational expressions with different denominators?
- How do you subtract 5/(x + 2) - 2x/(x^2 - 4) by finding the least common denominator?
- What is 2x/(x^2 + 5x + 6) + 3/(x^2 - 9)?
- What is the jealousy method for finding a least common denominator and how is it used to add fractions?
- How do you add 7/(3x - 2) + 6x/(2 - 3x) when the denominators are opposites of each other?
- How do you subtract 7/(x - 4) - 3/(4 - x) if the denominators are opposites of each other?
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Staff Review
This lesson does many more practice problems for finding the least common denominator of 2 rational expressions and then after giving each fraction this denominator, adding or subtracting the two algebraic fractions. This is a great lesson with great explanations.
