You need at least two numbers to find a common denominator.
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The least common denominator is the least common multiple of the denominators of the fractions.
Well, darling, the common denominator for 1/3 and 4/9 is 9. You see, to add or subtract fractions, you need a common denominator, and in this case, multiplying 3 by 3 gives you 9. So, there you have it, simple math for a simple question.
The least common denominator is the least common multiple of the denominators.
The least common denominator (LCD) refers to a multiple that is COMMON to two or more numbers. You have only one number in the question! The least denominator for a number is itself.
Yes.