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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:

 

 

Text Box: Dividing Rational Expressions:
	Factor the numerators and denominators of all expressions if possible
	Multiply by the reciprocal of the second expression
	Reduce to lowest terms by dividing out common factors
	Write answer as a single rational expression
	State any restrictions  remember the denominator cannot equal zero in the first expression and neither the numerator nor the denominator can equal zero in the second expression.
 


 

 

 

 

 

 

 

 

 

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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