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There is none because the 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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What is the least common denominator of 2 5 7 and 9?
The least common denominator (LCD) is 630.
What is common denominator of 8 9 7?
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