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Curated Video
Rationalizing Denominators
This video explains how to rationalize the denominator of a fraction by multiplying it by 1. It covers rationalizing denominators with square roots and cube roots, as well as dealing with irrational numbers and variables.
Curated Video
Rational Numbers
Using real world examples that students can relate to, this program defines and explains rational numbers and how they are used. Students will come to understand the difference between rational and irrational numbers and that rational...
Curated OER
What's a Rational Number?
A few examples of numbers, whole, mixed fraction, and decimal, that can be written in fraction form to prove they are rational numbers.
Curated OER
What is a Rational Function?
A rational function can be written as a ratio of two polynomials. There are a couple of rules concerning the denominator so watch this video and find out what they are.
Curated OER
What's a Rational Number?
A few examples of numbers, whole, mixed fraction, and decimal, that can be written in fraction form to prove they are rational numbers.
Curated OER
How Do You Turn an Integer Into a Fraction?
So you want to write an integer as a fraction? Well, all you have to do, is write the integer as the numerator with a denominator of 1.
Khan Academy
Khan Academy: Algebra: Complex Numbers: Number Sets
Video first reviews what natural numbers, whole numbers, integers, rational numbers, irrational numbers and real numbers are. Gives examples of classifying numbers. [5:17]
Khan Academy
Khan Academy: Algebra: Square Roots and Real Numbers
This resource explains how to find the square root of real numbers using their prime factorizations and labeling the results as rational or irrational. [10:19]
Khan Academy
Khan Academy: Algebra: Complex Numbers: Number Sets 2
Video explains in which number sets in the real number system that a specific repeating decimal belongs. Shows method for rewriting the repeating decimal as a fraction. [6:52]
Virtual Nerd
Virtual Nerd: What's a Rational Number?
View this video tutorial to learn about rational numbers. [1:38]
Sophia Learning
Sophia: How to Add, Subtract, Multiply, and Divide Ratios
Operations with rational numbers are discussed in this math resource. Video lessons on adding, subtracting, multiplying, and dividing rational numbers are included. The lessons contain examples with explanations.
Khan Academy
Khan Academy: Number Sets: Number Sets 2
This video explains in which number sets in the real number system a specific repeating decimal belongs.
Sophia Learning
Sophia: Multiplying Rationals: Lesson 4
This lesson demonstrates how to multiply rational numbers using algebraic notation. It is 4 of 6 in the series titled "Multiplying Rationals."
Sophia Learning
Sophia: Multiplying Rationals: Lesson 5
This lesson demonstrates how to multiply rational numbers using algebraic notation. It is 5 of 6 in the series titled "Multiplying Rationals."
Sophia Learning
Sophia: Multiplying Rationals: Lesson 6
This lesson demonstrates how to multiply rational numbers using algebraic notation. It is 6 of 6 in the series titled "Multiplying Rationals."
Sophia Learning
Sophia: Multiplying Rationals: Lesson 1
This lesson demonstrates how to multiply rational numbers using algebraic notation. It is 1 of 6 in the series titled "Multiplying Rationals."
Sophia Learning
Sophia: Representing Rational Numbers Using Variables: Lesson 9
This lesson demonstrates how to represent rational numbers using variables. It is 9 of 9 in the series titled "Representing Rational Numbers Using Variables."
Sophia Learning
Sophia: Representing Rational Numbers Using Variables: Lesson 1
This lesson demonstrates how to represent rational numbers using variables. It is 1 of 9 in the series titled "Representing Rational Numbers Using Variables."
Sophia Learning
Sophia: Simplifying Rational Expressions: Lesson 5
This lesson demonstrates how to simplify rational expressions. It is 5 of 6 in the series titled "Simplifying Rational Expressions."
Sophia Learning
Sophia: Representing Rational Numbers Using Variables: Lesson 7
This lesson demonstrates how to represent rational numbers using variables. It is 7 of 9 in the series titled "Representing Rational Numbers Using Variables."