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How do you find the common denominator of 3 fractions?

Updated: 4/28/2022

Wiki User

13y ago

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.

Wiki User

13y ago

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

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.

Is 8 12elvs smaller than 5 6th?

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.

What is the least common denominator for 3 and 7?

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

How do you compare 3 or more fractions?

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

What is the least common denominator of 3 and 2?

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

Is 3 over 4 or 5 over 8 bigger?

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.

How do you write equivalent fractions with the lowest common denominator?

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

What is a common denominator of fractions 34 and 58?

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

How do you find fractions with the same denominator that are equivalent to the given fractions?

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.

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Is 1 a common denominator for the fractions 1 3 and 5 6?

No. The smallest common denominator is 6 .

What is the common denominator for 5 over 3?

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