what is the least common denominator of.........?

The least common denominator of two or more non-zero denominators is actually the smallest whole number that is divisible by each of the denominators.

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Numbers divisible by '2' = 2, 4, 6, 8, 10, etc.

Numbers divisible by '5' = 5, 10, etc

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'10' is the lowest value number that is common to both of these sets. Therefore; the Least Common Denominator (LCD) of 1/2 and 4/5 is: 10 <== Answer!

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I hope this is helpful.

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