

Rational Expressions

Multiplication and division of rational
expressions

Solving complex rational expressions






Multiplication and division of rational
expressions

Use
the formulas for the multiplication
and the division of fractions. 


and 



Notice
the two special cases of which should be aware of: 


and 




Examples:
Perform the indicated
operations and reduce the answer to lowest terms. 

Note,
since each second line should be subtracted, the sign of each term is reversed. 

Solving complex rational expressions

A complex or compound rational expression has fractional expressions in its numerator, denominator or both. 
To simplify complex fractions, change the complex fraction into a division problem, i.e., divide the numerator by the denominator. 
Examples:
Simplify complex
fractions. 









Precalculus
contents A




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