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Rational Expressions 1

Rat'l. Exp. 2 - mult&div

Rat'l. Exp. 3 - add&subt

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jdsmathnotes

UNIT 1 : PRECALCULUS PREP

LESSON 6: MULTIPLYING & DIVIDING RATIONAL EXPRESSIONS

Multiplying Rational Expressions:

Text Box: Multiplying Rational Expressions:
· Factor the numerators and denominators of all expressions if possible
· Reduce to lowest terms by dividing out common factors
· Write answer as a single rational expression
· State any restrictions – remember the denominators cannot equal 0.

Example 1:

Solution:

** Multiply (numerator x numerator) and (denominator x denominator)

** Reduce to lowest terms

** State restrictions

** Factor numerator and denominator

** Divide out common factors

** State restrictions

Dividing Rational Expressions:

Example 2:

Solution:

Text Box: Remember restrictions apply to the denominator of the first expression and to both numerator and denominator of the second expression

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