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Q: What is the least common denominator in 9 21 and 7?
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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 14 and 21?

7.


What is the least common denominator for 7 and 1 and 3?

21


What is the Least common multiple for 21 and 49?

The least common denominator in whole numbers is 3/7 or a ratio of 1:2.3333333


Least common denominator of 7 and 5?

Least common denominator of 7 and 5 is 35.


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 7 and 3?

21As 3 and 7 are relatively prime (their hcf = 1), their lcm is 3×7 = 21.


What is the least common factor of 21 24 and 27?

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


What is the least common denominator of 5 7 35?

The Least Common Denominator of 5, 7, and 35 is 1.


What is the least common denominator for one seventh and three eighths?

1/7 + 3/8 = 8/56 + 21/56 is the lowest common denominator.


What is the Least common denominator for 7?

7


What is the lest common denominator for 38 and 7?

The least common denominator is 38*7 = 266.