Art of Problem Solving
Introduction to Division
Use reciprocals for the purpose of division. The video shows how to use reciprocals to rewrite division problems. Pupils see that the definition of division as the multiplication by the reciprocal works for all types of numbers.
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Dividing Mixed Numbers
This video expains how to divide two mixed numbers and write the answer as a mixed number. Practice problems are available. [2:40]
PBS
Pbs Learning Media: I <3 Math: Division With Fractions and Whole Numbers
This "I <3 Math" episode illustrates how to divide fractions by whole numbers, and how to divide whole numbers by fractions. [2:45]
Khan Academy
Khan Academy: Dividing Mixed Numbers and Fractions
This video expains how to divide a mixed number by a fraction and write the answer as a mixed number.
Math Mammoth
Math Mammoth: How to Divide Fractions and Reciprocal Numbers
Explains what a reciprocal number is, also called a multiplicative inverse, and how to use the reciprocal to divide a number or a fraction by a fraction. [10:32]
Khan Academy
Khan Academy: Understanding Fractions as Division
Uses fraction bars to demonstrate how multiplication and division are related. Shows how a fraction is really just a division problem, e.g., 3/4 x 4 equals 3 divided into 4 sets of 3/4. [6:44]
Khan Academy
Khan Academy: Dividing Fractions by Fractions
Explains how one can divide a fraction by a fraction by inverting the divisor and multiplying. [5:41]
Math Playground
Math Playground: Dividing Fractions Do You Always Have to Invert and Multiply?
This video illustrates how to divide fractions. The instructor emphasizes that you do not always have to invert and multiply when dividing fractions.
Math Playground
Math Playground: How Do You Find a Fraction of a Group?
This video illustrates how to calculate a fraction of a group of items.
CK-12 Foundation
Ck 12: Elem Math: Dividing Fractions by Fractions
[Free Registration/Login may be required to access all resource tools.] Video explaining how to divide a fraction by a fraction. [1:02]
Khan Academy
Khan Academy: Multiplying and Dividing Fractions: Dividing Fractions
This video provides a clear explanation and plenty of examples of dividing fractions.
Khan Academy
Khan Academy: Multiplying and Dividing Fractions: Dividing Fractions Example
This video explains how to divide two fractions and write the answer as a mixed number.
Khan Academy
Khan Academy: Creating a Fraction Through Division
Demonstrates how dividing the number 3 by 2 is the same thing as dividing it by 1/2. [2:45]
CK-12 Foundation
Ck 12: Elem Math: Dividing Whole Numbers by Fractions
[Free Registration/Login may be required to access all resource tools.] Video explaining how to divide a whole number by a fraction. [1:28]
Khan Academy
Khan Academy: Dividing a Unit Fraction by a Whole Number
Sal uses a visual model to divide a unit fraction by a whole number.
Khan Academy
Khan Academy: Dividing a Whole Number by a Unit Fraction
Sal uses a fraction model to divide a whole number by a fraction.
PBS
Pbs Learning Media: Modeling Fraction Multiplication Using Arrays
This video (2:53) illustrates a word problem involving the multiplication of fractions using an array to model the solution visually. The problem involves puffins, arctic birds that live in colonies and fish to feed their young. The...
Sophia Learning
Sophia: Dividing Whole Numbers by Fractions: Lesson 4
This lesson goes over how to divide a whole number by a fraction. It is 4 of 11 in the series titled "Dividing Whole Numbers by Fractions."
Sophia Learning
Sophia: Dividing Whole Numbers by Fractions
This lesson goes over how to divide a whole number by a fraction.
Khan Academy
Khan Academy: Dividing Fractions Example 1
Demonstrates how to divide one fraction by another using the example of 2/5 / 7/3. [1:16]
Khan Academy
Khan Academy: Dividing Fractions by Whole Numbers: Studying
Presents a word problem that involves dividing a fraction by a whole number. [2:34]
Khan Academy
Khan Academy: Dividing Whole Numbers by Fractions: Word Problems
By watching this video lesson, you will learn how to solve a word problem that involves dividing a whole number by a unit fraction. [2:31]