Lesson Planet
Search educational resources
  • Sign In Try It Free
  • AI Teacher Tools
    • Discover Resources Search reviewed educational resources by keyword, subject, grade, type, and more
    • Curriculum Manager (My Content) Manage saved and uploaded resources and folders To Access the Curriculum Manager Sign In or Join Now
    • Browse Resource Directory Browse educational resources by subject and topic
    • Curriculum Calendar Explore curriculum resources by date
    • Lesson Planning Articles Timely and inspiring teaching ideas that you can apply in your classroom
    • Our Story
    • Frequently Asked Questions
    • Testimonials
    • Contact Us
  • Pricing
  • School Access
    • Your school or district can sign up for Lesson Planet — with no cost to teachers
      Learn More
  • Sign In
  • Try It Free

Hi, what do you want to do?

Create a lesson plan
Create a lesson plan
Generate resources with 80+ AI teacher tools
Generate resources with 80+ AI teacher tools
Search 200,000 instructional videos
Search 200,000 instructional videos
Find a teaching resource
Find a teaching resource
Adding and Subtracting Fractions Instructional VideoAdding and Subtracting Fractions Instructional Video
Publisher
Khan Academy
Resource Details
Curator Rating
Educator Rating
Not yet Rated
Grade
7th - 9th
Subjects
Math
1 more...
Resource Type
Instructional Videos
Media Length
9:50
Audiences
For Teacher Use
1 more...
Duration
10 mins
Instructional Strategies
Flipped Classroom
1 more...
Year
2007
Usage Permissions
Creative Commons
BY-NC-SA: 3.0
cc
Instructional Video

Adding and Subtracting Fractions

Curated and Reviewed by Lesson Planet

This video shows how to add, subtract, and simplify fractions using a pie graph and an infinite blackboard. Once he has established the rule, Sal throws the viewer a curve ball with a fraction subtraction problem that results in a negative number.

73 Views 67 Downloads

Concepts

adding fractions, common denominators, fractions, fractions unlike denominators, subtracting fractions, subtraction

Additional Tags

adding fractions, common denominators, subtracting fractions, different denominators, math

Classroom Considerations

  • This video is hosted on YouTube

See similar resources:

Instructional Video

Adding and Subtracting Fractions

Krista King Math
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.
9 mins 3rd - 7th Math
CCSS: Adaptable
Instructional Video

How to Add Fractions that have Different Denominators, Fractions, Pre-Algebra

Khan Academy
Your young mathematicians can solve this problem along with Sal. They will add 4/9 and 11/12 by finding a number that evenly divides both 9 and 12. Sal fully explains the process of finding a common denominator in an evident and...
4 mins 5th - 7th Math
Instructional Video

How Do You Add Two Rational Expressions with the Same Denominator?

Curated OER
You have two algebraic fractions to add together so what do you do now? You say yippee because they have a common denominator. This means that all you have to do is combine the like terms in the numerators. This would be a good segment...
2 mins 8th - 11th Math
Instructional Video

How Do You Add Two Rational Expressions with Different Denominators?

Curated OER
Teach your class how to add two algebraic fractions with different denominators. The instructor in the video describes how to find the common denominator and demonstrates how to simplify the expression. A straightforward video, this...
4 mins 8th - 11th Math
Instructional Video

How Do You Subtract Two Rational Expressions with the Same Denominator?

Curated OER
Rational expressions that are in the form of fractions. Yuk! The teacher demonstrates how to subtract one rational expression from the other when the expressions have a common denominator. Combine like terms and write it in simplest form.
2 mins 8th - 11th Math
Instructional Video

How Do You Subtract Two Rational Expressions with the Same Denominator?

Curated OER
Rational expressions that are in the form of fractions. Yuk! The teacher demonstrates how to subtract one rational expression from the other when the expressions have a common denominator. Combine like terms and write it in simplest form.
2 mins 6th - 12th Math
Instructional Video

How Do You Add Two Rational Expressions with Different Denominators?

Curated OER
Teach your class how to add two algebraic fractions with different denominators. The instructor in the video describes how to find the common denominator and demonstrates how to simplify the expression. A straightforward video, this...
4 mins 6th - 12th Math
Instructional Video

How Do You Add Fractions with the Same Denominator?

Curated OER
Want to add fractions? Well, if they have the same denominator it's going to be so easy. Just add the numerator values together and keep the denominator the same. Easy as that.
1 min 4th - 7th Math
Instructional Video

What's the Least Common Denominator?

Curated OER
Help your class take on the least common denominator by providing them with this informational video. The video gives a definition of the least common denominator and includes an example using two algebraic fractions. This is definitely...
1 min 4th - 8th Math
Instructional Video

What's the Least Common Denominator?

Curated OER
Help your class take on the least common denominator by providing them with this informational video. The video gives a definition of the least common denominator and includes an example using 2 algebraic fractions. This is definitely a...
2 mins 6th - 12th Math
Try It Free
© 1999-2026 Learning Explorer, Inc.
Teacher Lesson Plans, Worksheets and Resources

Sign up for the Lesson Planet Monthly Newsletter

Open Educational Resources (OER)

  • Health
  • Language Arts
  • Languages
  • Math
  • Physical Education
  • Science
  • Social Studies
  • Special Education
  • Visual and Performing Arts
View All Lesson Plans

Discover Resources

  • Our Review Process
  • How it Works
  • How to Search
  • Create a Collection

Manage Curriculum

  • Edit a Collection
  • Assign to Students
  • Manage My Content
Contact Us Site Map Privacy Policy Terms of Use