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Subjects>Math>Other Math

How do you find a least common denominator?

Anonymous

∙ 8y ago

Updated: 4/28/2022

Finding the least common denominator is the same process as finding the LCM, only with denominators.

Example: 1/30 and 1/42

Factor them.

2 x 3 x 5 = 30

2 x 3 x 7 = 42

Select the highest amount of each factor.

2 x 3 x 5 x 7 = 210, the LCD

Wiki User

∙ 8y ago

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Continue Learning about Other Math

How do you find the common denominator of 3 fractions?

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.

Find the least common denominator?

The way that you can find the least common denominator is by first multiplying the 2 bottom numbers and whatever the product is that is your common denominator. to find the smallest one, you have to keep dividing it till it is in counting order or there is an odd number.

What is the least common denominator of 42 and 58?

The least common denominator is 1. The greatest common denominator is 2. The least common multiple is 1,218.

What is the least common denominator of 2-3 and 7-12?

The least common denominator of fractions is the smallest multiple of the denominators that they both share. To find the least common denominator of 2/3 and 7/12, you need to find the least common multiple of 3 and 12, which is 12. Therefore, the least common denominator of 2/3 and 7/12 is 12.

What is the least common denominator of 3 and x?

The least common denominator is 3x.

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