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Rational Functions

Across
When multiplying rational expression, first factor, then _____ common factors in the numerator and denominator
A rational function contains a _____
Exclude values for the variable that result in a zero in the ________
Least common denominator
Down
When dividing rational expressions, change to multiplication of the ______
In order to add two rational expressions, first get a _____ denominator
Many times the first step is to ______