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Q: What is the common denominator of 12 11 13 9?

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121

LCM(11, 13, 15) = 2145

The common denominator of 9 and 13 is 1

There is none because the Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of a pair of fractions.

143

Convert the fractions to a common denominator to compare them. Or divide 11 / 12, and 12 / 13, in a calculator, and compare the decimal equivalents.

There is none because the Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of a pair of fractions.

The least common denominator of 3 and 13 is 39.

The least common denominator of 13 and 52 is52

1 is a common factor of 11, 12, 13, 14 and 15.

The least common multiple of the numbers 11, 12 and 13 is 1,716.

First, you have to have a lowest common denominator. Eg: 1/2 - 6/13 The lowest common denominator is 26, because 13 * 2 is 26. You multiply 1/2 by 13, to make the denominator 26, which equals 13/26, then multiply 6/13 by 2 to get 12/26. So the equation with the lowest common denominators now plugged in is: 13/26 - 12/26 Subtract the numerators (13 and 12), so the answer is 1/26.

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