Khan Academy
Dividing Fractions
Here is an example problem that requires Sal to divide by the reciprocal. He demonstrates dividing the fraction and rewriting it as a mixed number. Sal nicely explains why multiplying a fraction is the same as dividing it by its reciprocal.
Khan Academy
Dividing Whole Numbers and Fractions: T-Shirts, Fractions, Pre-Algebra
There is no better way to present a math problem than within the context of a story. Sal explains how he divides a fraction to solve a word problem where he must determine how many shirts can be made with 48 yards of fabric. Problems...
Corbett Maths
Division with Fractions
Divide and conquer any fears about fractions. Viewers of a short educational video learn how to divide fractions. The method shown is to take the reciprocal of the second fraction and then multiply. Division with mixed numbers is also...
Corbett Maths
Reciprocals
Reciprocals is more than just flipping a fraction. Pupils watch a video to see how to find the reciprocal of any number. Individuals practice finding reciprocals of numbers including whole numbers and decimals.
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.
Art of Problem Solving
What's a Reciprocal?
If there is something in addition to get to the identity, does the same exist for multiplication? Using negative numbers to talk about the identity of addition, the video asks the question whether something similar exists for...
Math Antics
Dividing Fractions
Division of fractions is more than keep, change, flip. A video explains the reason to use the reciprocal when dividing fractions. Using the interpretation of fractions as division problems, the video explains the relationship of dividing...
Virtual Nerd
How Do You Divide Fractions?
You want me to what? Divide fractions? Ok, breathe. Would it be better if you multiplied those fractions? Find out how to change a division of fractions into a multiplication of fractions.
Math Playground
How Do you Divide Fractions?
The concept of dividing fractions is explored in this video. The instructor answers the question of whether or not one always has to invert fractions when multiplying. The answer is no, and she goes on to explain when one has to invert...
PBS
Pbs Learning Media: I <3 Math: Division of Fractions by Fractions
This "I <3 Math" episode shows how to visualize dividing fractions when problem-solving. [3:31]
Math TV
Math tv.com: Basic Mathematics: Mixed Numbers
A math teacher and his students offer step-by-step solutions to problems involving mixed numbers and improper fractions. In the left hand menu, click Basic Mathematics, Mixed Numbers.
Math Mammoth
Math Mammoth: How to Multiply a Fraction by a Fraction and Why It Works
Demonstrates how to multiply a fraction by a fraction through visual models, number problems, and word problems. [9:44]
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]
Khan Academy
Khan Academy: Multiplying and Dividing Fractions: Dividing Fractions
This video provides a clear explanation and plenty of examples of dividing fractions.
Math Mammoth
Math Mammoth: Divide Fractions by Whole Numbers and by Fractions: Even Divisions
Explains using visual models how to divide a simple fraction by a whole number or another basic fraction. [10:31]
Other
Algebra2go: Fraction Review Part I
Professor Perez's virtual classroom provides a review of fractions including writing fractions in lowest terms and multiplying and dividing fractions. [9:32]
PatrickJMT
Patrick Jmt: Basic Math: Dividing Fractions
Easy to follow video tutorial provides examples of how to divide fractions. [3:28]
Art of Problem Solving
Art of Problem Solving: Fraction Division
Video tutorial uses examples to reinforce understanding of how to divide fractions. [4:24]
Loyola University Chicago
Math Flix: Fraction Rulers
This QuickTime movie provides an opportunity to examine and discuss fraction rulers. As you watch and listen to the teacher and students interact it helps clarify this concept.
Homeschool Math
Homeschool Math: Dividing Fractions: Fitting the Divisor
In this lesson, fraction divisions are solved by thinking how many times the divisor "fits" or "goes into" the dividend. Includes video, visual models, and word problems. [10:32]
Sector Matemática
Sector Matematica: Division De Numeros Mixtos 01
This video tutorial shows how to divide two mixed fractions and a whole number by a mixed fraction. [3:20]
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]
Homeschool Math
Homeschool Math: Dividing Fractions by Whole Numbers
This video lesson teaches how to divide fractions by whole numbers (sharing divisions) using mental math.