The LCM of 18 and 20 is 180
Using factorisation method:
18 = 2 x 3²
20 = 2² x 5
lcm = 2² x 3² x 5 = 180
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The Least Common Multiple (LCM) of 4, 10, and 20 is 20.
The least common multiple of 12, 20 and 24 is 120.
the LCD of fractions is the least common multiple. So we are looking for the least common multiple of 16 and 20 which is 20. So the Least common denominator is 80
The LCM of 20 and 52 is 260. The least common multiple is the product of the two numbers divided by their greatest common factor. The greatest common factor of 20 and 52 is 4, so their least common multiple is 20 x 52 ÷ 4 = 260.