Rational Expressions
To Simplify Rational Expressions, Factor Expressions and Then
Cancel Common Factors
Example:
To Multiply Rational Expressions, Factor Expressions and Then
Cancel Common Factors
Example:
Adding and Subtracting Rational Expressions
Multiply Fractions By a "Factor or 1" To Obtain Common
Denominators. Then combine fractions.
Example:
Note: If needed, you must factor expressions completely before
obtaining common denominators.
Solving Equations Containing Rational Expressions
To solve equations containing rational expressions, remove
fractions by multiplying all terms on both sides by the least common
denominator. Then solve the equation that contains no fractions.
Example:
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