The ClearLCM notebook
Useful answers, in plain language.
Learn what the results mean, how the calculation works and where a little care makes a difference.
Math guide
How to find the least common multiple
Three practical methods, and a worked example using 12 and 18.
Math guideLCM of three or more numbers
Combine a group of integers without guessing a large shared multiple.
Math guideLCM vs. GCF: which one do you need?
One finds a shared multiple; the other finds a shared divisor.
Math guideUsing LCM to find a common denominator
Build equivalent fractions using the smallest shared denominator.
Math guideZero, negative values and very large LCMs
Understand the conventions and limits behind an exact result.
Math guideUsing LCM for repeating schedules
Find the next shared cycle when events start together.