Math Antics
Subtracting Mixed Numbers
A nine-minute video focuses on the method of subtracting mixed numbers. The host walks viewers through several examples, pointing out each step using the stacked form, regrouping, or borrowing. The video ends with an encouraging message...
Corbett Maths
Fractions: Addition and Subtraction
Let the video take away any issues with adding and subtracting fractions. Scholars review how to add and subtract fractions by rewriting the fractions using a common denominator. They also see how adding and subtracting mixed numbers...
Math Antics
Common Denominator LCD
Do not use the easiest but the first. The video shows a method to find a common denominator by finding the least common denominator to add fractions. By listing the multiples of the denominators, learners easily identify the least common...
Math Antics
Common Denominator ECD
Find the easiest common denominator. A video demonstrates finding a common denominator to add fractions. Pupils learn how to find a common denominator by using the product of the two denominators. After finding the common denominator,...
Math Antics
Adding and Subtracting Fractions
Why can't mathematicians add just like they multiply fractions? The resource provides a counterexample to show that the same rules for multiplying fractions do not work for addition. Using the counterexample, learners see the proper way...
Krista King Math
Relationships of Numbers
Challenge your classes to find relationships within fractions. An example asks learners to find the number that is one fifth of the way between two fractions. The instructor uses a number line to reinforce the numeric process.
Krista King Math
Signs of Fractions
Where do you put the negative sign when working with fractions? The video lesson answers this question by explaining that each fraction has three signs. Pupils see how to adjust the signs of a fraction two at a time.
Krista King Math
Adding and Subtracting Fractions
Develop a strategy for adding and subtracting fractions with your classes. The video shows a procedure for adding and subtracting fractions by finding common denominators. Each example increases in difficulty.
Curated OER
Subtracting Fractions from Whole Numbers
Duane draws a visual to show how to change a whole number into a fraction before subtracting.
Curated OER
Subtracting Fractions with Borrowing
The teacher draws a visual on the white board to show how to change a whole number into a fraction by borrowing. This is necessary because the original written fraction is too small to subtract the second fraction.
Khan Academy
Subtracting Fractions with Like Denominators
Elementary school students can observe Sal as he subtracts fractions that have a common denominator. Because this concept is fairly straight forward, he focuses on simplifying his answer. A great video for those needing extra support in...
Curated OER
Subtracting Fractions
In forty-four seconds, Duane explains how to find a common denominator and then subtract a mixed fraction. Short, simple, and great for an at-home review.
Curated OER
Basic Math: Lesson 6 - #10 - Subtraction of Fractions
This is a full lesson created to assist learners in subtracting mixed numbers and fractions. The instructor speaks quickly and fails to explain his thinking completely. He refers to LCD, completes problems involving negative numbers, and...
Khan Academy
Khan Academy: Adding and Subtracting Fractions: Adding Fractions Examples
Explanation on how to add rational numbers.
Khan Academy
Khan Academy: Fraction Word Problem Piano
Video tutorial shows how to solve a fraction word problem about practicing piano. [3:03]
Khan Academy
Khan Academy: Adding Fractions With Like Denominators
Adding Fractions with Like Denominators.
Khan Academy
Khan Academy: Adding Fractions With Unlike Denominators
Adding Fractions with Unlike Denominators.
Other
Algebra2go: Demonstrating Equivalent Fractions Using Number Lines Part 2
Video tutorial uses number lines labeled with different fractional units to visually demonstrate the meaning of equivalent fractions. [5:50]
Loyola University Chicago
Math Flix: Subtracting Fractions From One
This QuickTime movie provides an opportunity to see how to subtract a fraction from one. As you watch and listen to the teacher and students interact it helps clarify this concept.
Khan Academy
Khan Academy: Solving for the Missing Fraction
Learn how to solve problems involving missing fractions by finding a common denominator. [5:39]
Khan Academy
Khan Academy: Visually Subtracting Fractions: 3/4 5/8
Sal subtracts 3/4-5/8 using a fraction model for help.
Khan Academy
Khan Academy: Subtracting Mixed Numbers With Regrouping (Unlike Denominators)
Sal subtracts 17 4/9 - 12 2/3.
Khan Academy
Khan Academy: Subtracting Mixed Numbers: 7 6/9 3 2/5
Sal subtracts 3 2/5 from 7 6/9 by rewriting each mixed number to have a common denominator.