Khan Academy
Multiplying and Dividing Rational Expressions 1, Algebra II
Provide your algebra class with some review of rational expressions in this video. Sal uses several sample problems to show viewers the process, and his explanations are clear and easy to understand.
Corbett Maths
Dividing Algebraic Fractions
Do the keep, change, flip dance. The resource shows that the division of algebraic fractions follows the same rules as dividing numerical fractions. Pupils understand that if they can multiply rational expressions, they can divide...
Corbett Maths
Multiplying Algebraic Fractions
Make the complicated look relatively simple. The video shows how multiplication of algebraic fractions is easier when they factor the numerators and denominators. Pupils see which factors will cancel, or divide out, easier when writing...
Corbett Maths
Simplifying Algebraic Fractions
Simplification is about factoring. While working with rational expressions, pupils must know how to factor. The video shows how the process of finding common factors in algebraic fractions is similar to finding common factors in...
Corbett Maths
Adding Algebraic Fractions
The process requires the combination of several concepts. A video shows how individuals need several concepts to add rational expressions. Pupils must remember they need to find common denominators, combine like terms, and use the...
Krista King Math
Multiplication of Rational Expressions
Cancel that! Young mathematicians see how factoring and canceling can be very beneficial. The presenter works through examples of multiplying two rational expressions where the factors are simplified first. Factoring complex rational...
Krista King Math
Addition and Subtraction of Rational Expressions
A rational expression is a fraction where the denominator and/or the numerator is a polynomial. The resource presents rational expressions and how to add and subtract them. Additionally, the video connects the addition and subtraction of...
Krista King Math
Division of Rational Expressions
Demonstrate the steps of dividing rational expressions with an instructional video that works through two division problems. Numerators and denominators are quadratic trinomials and include several common factors.
Northeast Arkansas Education Cooperative
Recognizing When a Rational Expression is Undefined
It only takes the denominator to be zero to make an expression undefined. A video resource makes the connection of undefined fractions to rational expressions. It points out that to determine when a rational expression is...
National Education Association
Simplify Expressions by Factoring
Got that factoring thing down? Time to apply it! A helpful video explains the process of simplifying a rational expression, showing pupils how to factor a majority of expressions using special patterns. Here is a great way to begin...
Northeast Arkansas Education Cooperative
Simplify Algebraic Fractions by Factoring 2
Take your class through the mechanics of simplifying algebraic fractions by factoring trinomials. Though the steps for factoring are assumed known, the process of identifying and canceling common factors are detailed with...
Northeast Arkansas Education Cooperative
Simplify Algebraic Fractions by Factoring
A brief presentation with laser-like focus, this video talks young mathematicians through the mechanics of simplifying algebraic fractions by factoring trinomials. While the factoring itself is assumed to be a mastered skill, the...
Northeast Arkansas Education Cooperative
Recognizing When Radical Expressions are Undefined
Many times budding algebrists are fine when plugging specific numbers into expressions, but less certain when the range of acceptable values is undetermined. This detailed presentation helps the class move from the point value to...
Khan Academy
Khan Academy: Algebra: Multiplying and Dividing Rational Expressions
Video shows examples of multiplying and dividing rational expressions. Includes adding restrictions to the simplified answer. [9:19]
Khan Academy
Khan Academy: Algebra: Adding and Subtracting Rational Expressions Example 2
Video shows example of adding and subtracting rational expressions. Includes discussion of using the least common multiple of the denominators for a common denominator. [2:56]
Khan Academy
Khan Academy: Algebra: Adding and Subtracting Rational Expressions
Video showing how to add and subtract rational expressions by finding a common denominator and then simplifying the result. Also includes finding the domain of the result. [8:15]
Khan Academy
Khan Academy: Algebra: Simplifying First for Subtracting Rational Expressions
Demonstrates how to subtract rational expressions. Each of the rational expressions can be simplified before finding common denominators and performing subtraction. [2:52]
Khan Academy
Khan Academy: Algebra: Subtracting Rational Expressions
Demonstrates how to find common denominators of rational expressions in order to subtract the given rational expressions. [5:35]
Khan Academy
Khan Academy: Algebra: Multiplying and Simplifying Rational Expressions
Video demonstrates how to multiply two rational expressions, simplify the product, and determine the domain. [5:05]
Khan Academy
Khan Academy: Algebra: Simplifying Rational Expressions Introduction
Video shows examples of how to simplify rational expressions. Includes writing restrictions for simplified expressions. [15:22]
Khan Academy
Khan Academy: Algebra: Adding and Subtracting Rational Expressions Example 3
Video shows example of adding and subtracting rational expressions by creating a common denominator. [4:37]
Khan Academy
Khan Academy: Algebra: Multiplying and Dividing Rational Expressions 1
Video lesson involving multiplying two rational expressions, simplifying the result and then stating the domain of the expression. [3:38]
Khan Academy
Khan Academy: Algebra: Multiplying and Dividing Rational Expressions 2
Video lesson on multiplying rational expressions and simplifying the result by factoring the difference of squares. Includes stating the domain of the expression. [4:52]
Khan Academy
Khan Academy: Algebra: Multiplying and Dividing Rational Expressions 3
Video lesson involving dividing rational expressions and simplifying the result by factoring out the greatest common factor. Includes stating the domain of the expression. [4:10]