# Rational Expressions

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11.4Rational Expressions

In this Math video tutorial on Polynomials we look into the field of Rational Expressions and cover the following points:

• What are rational expressions?
• What do rational expressions have in common with rational numbers?
• What are relatively prime factors?
• How to convert an algebraic fraction into a rational expression
• What the disallowed values are in a rational expression
• How to simplify the rational expressions
• How to multiply/divide rational expressions
• How to add/subtract rational expressions
• How to calculate the Least Common Multiple (LCM) of two or more monomials
• What are complex fractions? How to deal with them?
• How to calculate the value of recurring complex fractions

## Whats next?

Enjoy the "Rational Expressions" video tutorial? People who liked the "Rational Expressions" video tutorial found the following resources useful:

1. Video Tutorial Feedback. Helps other - Leave a rating for this video tutorial (see below)
2. Polynomials Math tutorial: Rational Expressions. Read the Rational Expressions math tutorial and build your math knowledge of Polynomials
3. Polynomials Revision Notes: Rational Expressions. Print the notes so you can revise the key points covered in the math tutorial for Rational Expressions
4. Polynomials Practice Questions: Rational Expressions. Test and improve your knowledge of Rational Expressions with example questins and answers
5. Check your calculations for Polynomials questions with our excellent Polynomials calculators which contain full equations and calculations clearly displayed line by line. See the Polynomials Calculators by iCalculator™ below.
6. Continuing learning polynomials - read our next math tutorial: The Definition of Monomials and Polynomials

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