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So with 3 fractions with denominators of 28 21 and 15: 28 = 7 x 4, 21 = 7 x 3, and 15 = 5 x 3. 28 and 21 have 7 in common; 21 and 15 have 3 in common, so those factors are used once: 7 x 4 x 3 x 5 = 420
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∙ 13y ago
Wiki User
∙ 7y ago420
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What is the least common denominator for 9 over 15 and 7 over 10?
least common denominator for 15 and 10 is 30, so 9/15 = 18/30 and 7/10 = 21/30
What is the least common denominator of 21 and 6?
There is none because the Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of a pair of fractions.
What is the least common denominator of 14 and 21?
7.
Least common denominator of 21 and 28?
There is none because the Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of two or more fractions.
What is the least common denominator for 8 and 21?
There is none because the Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of two or more fractions.
What is the least common denominator of 21 12 and 15?
420
What is the least common denominator for 9 over 15 and 7 over 10?
least common denominator for 15 and 10 is 30, so 9/15 = 18/30 and 7/10 = 21/30
What is the common denominator of 24 and 21?
A common denominator, though not the least one, is 24*21 = 504.
What is the least common denominator of 21 and 7?
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.
What is the least common denominator of 21 and 6?
There is none because the Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of a pair of fractions.
What is the least common denominator of 21 and 48?
336
What is the least common denominator for 18 and 21?
3
What is the least common denominator of 9 and 21?
63
What is the least common denominator of 21 and 5?
105
What is the least common denominator of 14 and 21?
7.
Least common denominator of 9 and 21?
There is none because the Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of two or more fractions.
Least common denominator of 21 and 28?
There is none because the Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of two or more fractions.
