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What is the lowest common denominator for 81 and 89?

Updated: 8/17/2019
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11y ago

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There is none because Least Common Denominator (or LCD) refers to the Least Common Multiple (LCM) of the denominators of two or more fractions or mixed numbers. Even if you converted your whole numbers (x) to their fraction equivalents (x/1), the LCD would always be 1.

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Q: What is the lowest common denominator for 81 and 89?
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What is the lowest common denominator of 89 and 67?

The lowest common denominator of any two or more whole numbers, such as 89 and 67, will always be one (1) because 'common denominator' refers to the denominators of two or more fractions or mixed numbers, not whole numbers. So, a set of whole numbers (x,x) would have to be converted to their fraction equivalents, i.e., x/1, which will always yield a denominator of 1.


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