Rational Expressions

A rational expression is an expression where there is a variable in the denominator. For example:

is a rational expression and

is NOT a rational expression.

Of course, the rational expressions you deal with in this unit will be more complex than the first example shown above. Click on one of the topics below for help with that topic. Clicking on one of these links will take you to a new window with help provided by Purplemath.com. Just close the window to come back here.

Factoring Review: http://www.purplemath.com/modules/factquad.htm

Simplifying Rational Expressions: http://www.purplemath.com/modules/rtnldefs2.htm

Multiplying Rational Expressions: http://www.purplemath.com/modules/rtnlmult.htm

Dividing Rational Expressions: http://www.purplemath.com/modules/rtnlmult2.htm

Adding and Subtracting Rational Expressions: http://www.purplemath.com/modules/rtnladd.htm

Complex Rational Expressions: http://www.purplemath.com/modules/compfrac.htm

Remember, you should only be using these pages on the advice of your teacher. Your teacher is the first and best resource for help.