Ask a question

What constitutes a rational expression? How would you explain this concept to someone unfamiliar with it?

How would you define what a rational exponent is? How about rational expression?
Provide two rational expressions with different denominators for your classmate
to add or

1 Answer by Expert Tutors

Tutors, sign in to answer this question.
Beth F. | Your Learning Style + Brain Friendly Math = SuccessYour Learning Style + Brain Friendly Mat...
5.0 5.0 (32 lesson ratings) (32)
Hi Harry,
When we use the word "rational" in algebra we are referring to quantities that look like fractions (1/2, 1/x+4) or that can be made to look like fractions ( 2 2/3 = 8/3, 5 = 5/1). Therefore, a rational exponent is a fractional exponent and a rational expression is an expression that contains a fraction. When you add or subtract rational expressions with unlike denominators they could be numerical (1/2 + 2/3) or algebraic
(1/ x - 3/y).
I hope that this helps you.