Q: What is the least common denominator of 3 8 and 18?

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18 3*6 = 18 2*9 = 18

What is the least denominator of 2 and 3

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

Sir/Ma'am, denominator are fractions, so the is no common denominator. But the least common multiples is 30

The Least Common Multiple of 3 and 5 is 15, which would be the denominator to use for fractions with the denominators 3 and 5.

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3

18 3*6 = 18 2*9 = 18

There can be no greatest common denominator. If you have a set a numbers whose least common denominator is L then 2*L, 3*L, … are all common denominators. There is no end to that sequence and so no greatest.

The least common denominator of 3 and 13 is 39.

The least common denominator is 3x.

What is the least denominator of 2 and 3

the least common multiple of 15,9,and 12 is 180.

18

The Least Common Denominator of 3/4 and 7/8 is 8.

2/3 and 3/4 Least Common Denominator is 12

The common denominator is usually the Lowest (or Least) Common Multiple of the numbers involved. Where two numbers have no common factors then the LCM is simply the product of those numbers. As 19 is a prime number and has no factors in common with 18 then the common denominator is 18 x 19 = 342.

A common denominator, though the least, is 240.