What is the LCM of 12 and 3.6?

Answer 1

The concept of LCM fails once you start looking at fractional numbers. This is because in the field of rational numbers, given any set of numbers (eg 12 and 3.6), any other number will be a multiple (possibly fractional).

For example,

0.5 is a multiple of 12 since 12*0.4166... = 0.5

and

0.5 is a multiple of 3.6 since 3.6*0.1388... = 0.5

Answer 2

The LCM applies to integers, not decimals.

Answer 3

The LCM of 36 and 12 is 36.