[Free Registration/Login may be required to access all resource tools.] This video shows a basic addition problem of fractions with common denominators.

A video tutorial discussing the differences of like and unlike fractions. After watching the video, students can take a 3 question quiz to see if they understand the concept.

This video illustrates how to add fractions that have different denominators.

Watch this video tutorial to see how to add fractions with different denominators together. First, you're going to need a common denominator. [1:57]

This video shows how to rewrite two fractions as fractions with a least common multiple.

Determine the common denominator to add unlike fractions.

Video shows examples of adding fractions with like and unlike denominators. Includes a word problem example involving adding fractions. [7:40]

In a gradual release of responsibility fashion, this video teaches students first how to add unlike fractions using a visual model where the common denominator is stated, then how to add them in the same way without a visual model, then...

Demonstrates with visual models how to add and subtract mixed numbers. This is followed by examples with just numbers where the mixed numbers must be converted to a common denominator. There is also a word problem example. [10:16]

Video tutorial provides examples and tips for simplifying complex fractions by getting common denominators, flipping, multiplying, and canceling. [4:47]

This lesson covers how to find the lowest common denominator of two or more fractions. It is 10 of 14 in the series titled "Finding the Lowest Common Denominator."

This lesson covers how to find the lowest common denominator of two or more fractions. It is 13 of 14 in the series titled "Finding the Lowest Common Denominator."

This lesson covers how to find the lowest common denominator of two or more fractions. It is 14 of 14 in the series titled "Finding the Lowest Common Denominator."

This lesson covers how to find the lowest common denominator of two or more fractions. It is 2 of 14 in the series titled "Finding the Lowest Common Denominator."

This lesson covers how to find the lowest common denominator of two or more fractions. It is 3 of 14 in the series titled "Finding the Lowest Common Denominator."

This lesson covers how to find the lowest common denominator of two or more fractions. It is 4 of 14 in the series titled "Finding the Lowest Common Denominator."

This lesson covers how to find the lowest common denominator of two or more fractions. It is 8 of 14 in the series titled "Finding the Lowest Common Denominator."

This lesson covers how to find the lowest common denominator of two or more fractions. It is 9 of 14 in the series titled "Finding the Lowest Common Denominator."

This QuickTime movie presents an explanation of the solution for a design problem that requires an extended response. The teacher and student discuss how to work through it together to find the solution. As you watch and listen to the...