Answers

2014-09-24T19:24:42+08:00
I can't explain it but i can give examples...

Ex:
1/2 and 5/27
   Multiples:
         2= 2, 4, 6, 8, 10, 12, 14, 16, 18, 20,...,50, 52, 54
         27= 27, 54, 81, 108, 135
LCM = 54...
   it is the least common multiple of 2 and 27... HOPE IT HELPS DUDES!
    
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2014-09-25T18:42:20+08:00
The Least Common Multiple (LCM) of two or more numbers is the least number other than 0 that is a multiple of each.

2 = 2,4,6,8,10,12,14,16,18,20
4 = 4,8,12,16,20,24,28,32,36,40
Another method in finding the least common multiple is by using the prime factors.

         Find the prime factors of 12 and 20 using the factor tree.
  
                      
                   12                                          20
              4    ×   3                                 4    ×   5
          2   ×   2    ×   3                       2   ×   2    ×  5

The prime factors of 12 = 2^2 ×  3
The prime factors of 20 = 2^2 ×  5
The common factor is 2^2.
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