Why is it Called a Rational Expression?

Why is it Called a Rational Expression?

Note:

Got a fraction with a polynomial in the numerator and denominator? You have a rational expression! Watch this tutorial and learn how to identify a rational expression.

Keywords:

  • problem
  • rational
  • expression
  • rational expression
  • fraction
  • polynomial
  • numerator
  • denominator
  • ratio
  • identify

Background Tutorials

  • Fraction Basics

      • What's a Numerator and What's A Denominator?What's a Numerator and What's A Denominator?

      What's a Numerator and What's A Denominator?

      Numerators and denominators are the key ingredients that make fractions, so if you want to work with fractions, you have to know what numerators and denominators are. Lucky for you, this tutorial will teach you some great tricks for remembering what numerators and denominators are all about.

  • Polynomials

      • What is a Polynomial?What is a Polynomial?

      What is a Polynomial?

      If you learn about algebra, then you'll see polynomials everywhere! In this tutorial, you'll learn the definition of a polynomial and see some of the common names for certain polynomials.

  • Simplifying Rational Expressions

      • What's a Rational Expression?What's a Rational Expression?

      What's a Rational Expression?

      Got a fraction with a polynomial in the numerator and denominator? You have a rational expression! Learn about rational expressions in this tutorial.

      • What's an Algebraic Fraction?What's an Algebraic Fraction?

      What's an Algebraic Fraction?

      You'll likely to encounter algebraic fractions while learning about algebra, so it would be a good idea to know what they are. In this tutorial, you'll learn what kind of fractions are algebraic fractions. Check it out!

Further Exploration

  • Excluded Values

      • How Do You Find Excluded Values?How Do You Find Excluded Values?

      How Do You Find Excluded Values?

      Excluded values are values that will make the denominator of a fraction equal to 0. You can't divide by 0, so it's very important to find these excluded values when you're solving a rational expression. Follow along with this tutorial and learn how to find these excluded values!

  • Dividing Rational Expressions

      • How Do You Divide Two Rational Expressions?How Do You Divide Two Rational Expressions?

      How Do You Divide Two Rational Expressions?

      Dividing two rational expressions? Turn it into a multiplication problem by multiplying by the reciprocal of the second rational expression (the divisor)! This tutorial shows you how to do just that! Then, you'll see how to perform the multiplication and simplify to get you answer!

  • Solving Rational Equations

      • What's a Rational Equation?What's a Rational Equation?

      What's a Rational Equation?

      A rational expression is a fraction with a polynomial in the numerator and denominator. If you have an equation containing rational expressions, you have a rational equation. Learn more about rational equations by watching this tutorial!