did you know when you try to find the least commen multiple of 3 numbers you have to divide by two after you get your answer

my class (ms.lott in texas)
told us that for some reason its doubling the number so always divide by two once you have crossed out the commen numbers and multiplied the numbers not in commen
its very cool and im in 6th grade and i love 4th grade math its wonderful

from:alyssa r.