5 and 60 have a gcf of 5 and a LCM of 60
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This doesn't work. The LCM of a pair of numbers has to be equal to or larger than the largest number of the pair. If one of the numbers is 60, the other is 120. 60 and 120 have a GCF of 60, not an LCM.
The LCM is 1260. The GCF is 12.
List the multiples.15, 30, 45, 60, 7520, 40, 60, 80The LCM is the first number that appears on both lists.
The GCF refers to whole numbers, not decimals.
The GCF is 5. The LCM is 60.