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Q: What common denominator does 23 and 81 have?

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Since 8 is 23 and 81 is 34, the least common denominator is 23 x 34 = 648.

common denominator of eight and nine

8100

3

the number 9

4536

The lcm or lcd is 5751

It is: 324

It is: 115

LCD(9, 16, 18, 81) = 1296

391

No

Convert both to decimal, and compare. For example, divide 81 / 105, and write down the decimal equivalent; the same for the other fraction. OR: Find a common denominator, and convert both to the common denominator. It need not be the least common denominator; any common denominator will do - for example, if you multiply 105 x 300, you have a common denominator (which is not the least common denominator in this case). The decimal method is much easier, by the way.

The lowest common denominator of any set of whole numbers is 1

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 lowest common denominator of 23 and 46 is 46.

Yes. The common denominator of any two or more whole numbers will always be 1.

No common factor so the product, 621

It is: 1

Nine 7x9=63 so 63/9=7 9x9=81 s0 81/9=9

5/12 + 9/6The least common multiple (LCM or common denominator) of 12 and 6 is 12 so bring both fractions to the same denominator: 5/12 + 18/12Add the numerators, the denominator is the LCM: 23/12Answer = 23/125/12 + 9/6The least common multiple (LCM or common denominator) of 12 and 6 is 12 so bring both fractions to the same denominator: 5/12 + 18/12Add the numerators, the denominator is the LCM: 23/12Answer = 23/125/12 + 9/6The least common multiple (LCM or common denominator) of 12 and 6 is 12 so bring both fractions to the same denominator: 5/12 + 18/12Add the numerators, the denominator is the LCM: 23/12Answer = 23/125/12 + 9/6The least common multiple (LCM or common denominator) of 12 and 6 is 12 so bring both fractions to the same denominator: 5/12 + 18/12Add the numerators, the denominator is the LCM: 23/12Answer = 23/12

The GCF is: 1

The Greatest Common Divisor/Denominator is 23

A common denominator is 7.A common denominator is 7.A common denominator is 7.A common denominator is 7.

The least common multiple of 58 and 81 is 4698. To find the least common multiple of big numbers, take 1/(number 1)+1/(number 2), then find a common denominator, then add them together and reduce. The denominator of this reduced fraction is the least common multiple. In this example, 1/58+1/81=81/4698+58/4698=139/4698, which does not reduce so 4698 is the least common multiple.