# Keyword Analysis & Research: definition rational expression

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What constitutes a rational expression?

A rational expression, also known as a rational function, is any expression or function which includes a polynomial in its numerator and denominator. In other words, a rational expression is one which contains fractions of polynomials.

How simple is your rational expression?

Rational expressions are expressions in the form of a ratio (or fraction) of two polynomials. Just like regular fractions, a rational expression needs to be simplified . This is a fairly simple process if the like factor is a monomial, or single-term factor, but it can be a little more detailed when the factor includes multiple terms. Method 1

What is the formula for rational expression?

Rational Expressions. An expression that is the ratio of two polynomials: It is just like a fraction, but with polynomials. A rational function is the ratio of two polynomials P(x) and Q(x) like this. f(x) = P(x)Q(x)