Common

How to Find the Least Common Denominator

How to Find the Least Common Denominator

To find the least common denominator, simply list the multiples of each denominator (multiply by 2, 3, 4, etc. out to about 6 or seven usually works) then look for the smallest number that appears in each list. Example: Suppose we wanted to add 1/5 + 1/6 + 1/15.

  1. What is the LCD of 1 3 and 2 7?
  2. What is the LCD of 12 and 9?
  3. What is the LCD of 8 and 3?
  4. What is the LCD of 6 and 4?
  5. What is the LCD of 8 and 12?
  6. What is the LCD of 3 and 7?
  7. What is the LCD of 4 and 7?
  8. What is the least common denominator of 5 42 and 7 30?

What is the LCD of 1 3 and 2 7?

Therefore, the least common denominator (LCD) is 21.

What is the LCD of 12 and 9?

Your common denominator would be 36. Another way to find this would be to multiply each fraction by the other fractions denominator.

What is the LCD of 8 and 3?

The least common multiple of 3 and 8 is 24.

What is the LCD of 6 and 4?

1 Answer. The least common multiple of 6 and 4 is 12.

What is the LCD of 8 and 12?

1 Answer. The least common multiple of 8 and 12 is 24.

What is the LCD of 3 and 7?

Least common multiple (LCM) of 3 and 7 is 21.

What is the LCD of 4 and 7?

4 and 7 have 28 and 56 in common BUT the LCM would be 28 since that's the LEAST common, or the smallest number that they would have in common.

What is the least common denominator of 5 42 and 7 30?

The lowest common denominator of 5/42 and 7/30 is 210.

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