What Is Least Common Denominator?
In Factorization, the Least Common Multiple (LCM)
is also known as Least Common Denominator (LCD).
So what does it mean? The simple answer to this
question is find the smallest number that can be divided evenly by both numbers.
Example: the Least Common Multiple of 108 and 126 is 756: 756 /
108 = 7 and 756 / 126 = 6.
To find the least common multiple, factor both numbers into their
primes using Prime Factorization. Each prime factor of either
number must appear in the least common multiple at least as many
times as it does in each one. Before going further, here is recommend reading: Exponents, and Prime Factorization.