Step 1: (make the cake :) lets say your two numbers are 54 and 132, create a division box over top. What number can go into both of them? 2, so now, you put the two in the divisor spot even though this is not division. next on top of the box, you put your answer to what you had (54 divided by 2=27 etc.) then by looking at those answers do the same thing as before, except obliviously they will have different factor this time. (which is 3) Now that the cake is all done, make a bubble letter L (upsidown though) and circle it around the "divisors" and next numbers in the box.
Step 2. Multiply them all, and that is your LCM
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Methods aren't necessary. The only common factor (which makes it the GCF) of 16 and 35 is 1.
It is a method of finding the LCM (Least Common Multiple) of 2 or more numbers. Suitably used for finding the least common denominator when adding/subtracting fractions.
The LCM of 54 and 210 is 26....Using the ladder method
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Least Common Multiple (LCM) for 24 54 is 216.