Learn all about finding common denominators in fractions. Watch how to use the least common multiple of the denominators to rewrite fractions, making them easier to compare or add.

One way to find a common denominator for two (or more!) fractions is to list the multiples of each denominator until we find the smallest multiple they have in common.

Learn how to find common denominators for fractions with different numerators and denominators by identifying multiples of the original denominators. It demonstrates the process using 1/4 and …

In this lesson, you will practice adding and subtracting rational expressions with different denominators. You will use the least common denominator as your common denominator in …

You can find the exercises for this topic on the learning dashboard. Or, you can type "comparing fractions" into the bar at the top, and you will find it. Hope this helps!

Learn how to rewrite fractions with different denominators as equivalent fractions with a common denominator. Watch how to visually represent this process and apply it to solve problems.

We have two fractions, 3 4 and 7 6 , and we want to rewrite them so that they have a common denominator (and whole number numerators). What numbers could we use for the denominator?

A 0 in the denominator (in your example: (x+2)/0 ) is undefined, but a numerator in the denominator (in your example: (0/x+1)) isn't undefined. 0/x is 0.

To subtract fractions with different denominators, you need to find a common denominator. This can be done by identifying the least common multiple of the two denominators.

Decompose a fraction, including mixed numbers and fractions greater than one, into a sum of fractions with the same denominator in multiple ways. Demonstrate each decomposition with …