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What is the least common denominator of 21 and 7?

Anonymous

∙ 12y ago

Updated: 10/17/2024

The Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of a pair of fractions. I assume the 7 and 21 are the denominators of two fractions you need to add or subtract.

LCD(7, 21) = 21.

Wiki User

∙ 9y ago

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More answers

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

Wiki User

∙ 12y ago

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