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LCD stands for "least common divisor" which is actually a mistaken term because it would mean the smallest integer that evenly divides every member of a set - that's always 1 !
The two terms that are being confused in LCD are actually
> Least common multiple (LCM), the smallest number that's a multiple of all members of the set
> Greatest common factor (GCF), the largest number that evenly divides every member of the set
4, 7, and 9 do not have any factors in common, so their LCM is simply their product, 252, while their GCF is 1.
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Earn +20 ptsQ: What is the LCD of 9 7 4?
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What is the lcd of 7 9 and 2?
LCD(7, 9, 2) = 126.
What are the least common denominator of three fourths and seven ninths?
The LCD of 3/4 and 7/9 is 36.
What is the lcd of 6 4 and 7?
84
The least common denominator of 4 and 9?
LCD(4, 9) = 36.
What is the common denominator for 4 over 7 and 7 over 8?
The LCD for 4/7 and 7/8 is 56.
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