You need at least two fractions to determine a least common denominator.
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At least one other fraction is needed to determine a common denominator.
At least two fractions are needed to determine a least common denominator.
A common denominator, though not the least one, is 200.
The least common denominator between fractions 1 over 32 and 8 over 64 is 64.
Least common denominator is used for fractions, not integers. Integers can be expressed as fractions, though, by placing them over 1 so if you really meant least common denominator then the answer is 1. If, however, you meant least common multiple, then then answer is 60.