How do we multiply and divide Rational Expressions? Do Now: Multiply and Simplify
Step by step plan Factor Numerators and Denominators Divide by all common factors, no matter in which expression they are located You can “cancel” any numerator with any denominator. But you can not cancel two numerators or two denominators. Multiply remaining factors in numerators and remaining factors in denominators
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But how do we divide? When we divide by a fraction it is the same as multiplying by the reciprocal. Leave the first fraction as it is, flip the second fraction and multiply like normal. Ex.
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Recap To multiply: To Divide Factor Eliminate from numerator and denominator Multiply across To Divide Flip second fraction Multiply like normal
Homework Pg 118 Numbers 1-20