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?
Staff Review
Currently 4.0/5 Stars.
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.