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Simplify Rational Expressions




 


Videos and lessons to help High School students understand that rational expressions form a system analogous to the rational numbers, closed under addition, subtraction, multiplication, and division by a nonzero rational expression; add, subtract, multiply, and divide rational expressions.


Suggested Learning Targets


  • Simplify rational expressions by adding, subtracting, multiplying, or dividing.
  • Understand that rational expressions are closed under addition, subtraction, multiplication, and division (by a nonzero expression).

Common Core: HSA-APR.D.7

Related Topics:
Common Core (Algebra)

Common Core for Mathematics

Simplifying Rational Expressions
This video explains how to simplify rational expressions.


Ex 1: Simplifying Rational Expressions - Monomials
The video provides examples of simplifying rationale expressions. These examples have monomial numerators and denominators.





Ex 2: Simplify Rational Expressions
This video provides examples of how to simplify rational expressions.


Ex 3: Simplify Rational Expressions
This video provides examples of how to simplify rational expressions.



 

Ex 4: Simplify Rational Expressions
This video provides examples of how to simplify rational expressions.


Rational Expressions: Writing in Lowest Terms - Ex 1
The steps are first factor the rational expressions and then cancel to write in lowest terms. The video also discusses the domain of the expressions obtained.




Rational Expressions: Writing in Lowest Terms.
In this example, we reduce a rational expression involving a cubic polynomial and a quadratic polynomial.


Simplifying Rational Expressions.



 

Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.


You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.


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