INSTRUCTORS Carleen Eaton Grant Fraser Eric Smith

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### Dividing Rational Expressions

• When dividing one rational expression by another one, first invert the second rational expression and change the operation from division to multiplication. Then factor all the numerators and denominators, and cancel the common factors. Combine the remaining factors to form the final, simplified answer.

• If two factors in the numerator and denominator look almost the same, factor –1 out of either of the factors and see if you get two identical factors.

### Dividing Rational Expressions

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

• Intro 0:00
• Procedure 0:21
• Example
• Cancel Before Multiplication 4:31
• Example
• Rational Expressions Containing Polynomials 8:01
• Example
• Lecture Example 1 10:43
• Lecture Example 2 13:46