Best Answer

Pick two of the fractions and find the Least Common Multiple of those two denominators. Then take that number, and find the Least Common Multiple between that and the third denominator. This number will be the Least Common Denominator between the three fractions.

If you don't care to find the Least common denominator, then just take the three denominators, and multiply them together.

Q: How do you find the common denominator of 3 fractions?

Write your answer...

Submit

Still have questions?

Continue Learning about Other Math

Common Denominator means that the denominators in two (or more) fractions are common, or the same. The common denominator is important because before you can add or subtract fractions, the fractions need to have a common denominator.Sometimes fractions have different denominators, like 2/3 and 3/4. If you want to add or subtract them, they need to have the same denominator. In order to do that, you find a common denominator which is the same thing as a common multiple, only with denominators.

Example: 2/3 and 3/4 The LCD of 3 and 4 is 12. Multiply the numerator and the denominator of 2/3 by 4 to make 8/12 Multiply the numerator and the denominator of 3/4 by 3 to make 9/12

No. The smallest common denominator is 6 .

At least two fractions are needed to determine a common denominator.

Any fractions with a denominator of 8. Also, the denominator of one of the fractions might be any factor of 8.

Related questions

Common Denominator means that the denominators in two (or more) fractions are common, or the same. The common denominator is important because before you can add or subtract fractions, the fractions need to have a common denominator.Sometimes fractions have different denominators, like 2/3 and 3/4. If you want to add or subtract them, they need to have the same denominator. In order to do that, you find a common denominator which is the same thing as a common multiple, only with denominators.

To compare to fractions, please convert them to a common denominator. (1) Find the common denominator, (2) Convert both fractions to this common denominator, (3) Compare the numerators.

There is none. A least common denominator is to be found between or among fractions. 3 and 7 are not fractions.

Find the equivalent fractions with the same denominator (the least common multiple) and then compare the numerators.

To compare fractions, convert them to a common denominator - in this case, a denominator of 8 will work.To compare fractions, convert them to a common denominator - in this case, a denominator of 8 will work.To compare fractions, convert them to a common denominator - in this case, a denominator of 8 will work.To compare fractions, convert them to a common denominator - in this case, a denominator of 8 will work.

If you're wanting to find a common denominator between fractions with denominators of 3 and 2, then 3 & 2 have only a common factor of 1, so the least common denominator = 2*3 = 6

If you mean fractions of 3/4 and 5/8 then the lowest common denominator needed is 8

Example: 2/3 and 3/4 The LCD of 3 and 4 is 12. Multiply the numerator and the denominator of 2/3 by 4 to make 8/12 Multiply the numerator and the denominator of 3/4 by 3 to make 9/12

By finding the least common denominator. It's the same process as the least common multiple. Example: 1/2 and 1/3 The LCM of 2 and 3 is 6, so 1/2 = 3/6 and 1/3 = 2/6 To find equivalent fractions, multiply both the numerator and the denominator by the same number.

No. The smallest common denominator is 6 .

At least two fractions are needed to determine a common denominator.

15