Because 240 is the smallest number that 12, 16 and 20 will divide into evenly with no remainder.
240
240
The LCM is: 240
The LCM of 12, 16, and 20 is 240
The Least Common Multiple (LCM) for 12 16 20 is 240.
240
The LCM of 16 20 and 24 is 240.
The LCM is: 240
The LCM is 240
The Least Common Multiple (LCM) of 20, 16, and 12 is 240.LCM, in this case, would presumably refer to the Least Common Multiple.The easiest way to break down these numbers would be with prime numbers.12=2x2x316=2x2x2x220=2x2x5From here, we then multiply the greatest number of times these numbers appear. 12 has one 3. 16 has four 2. 20 has one 5. 2x2x2x2x3x5=240.Thus, we find that the LCM for 12, 16 and 20 is 240.
240
240