Correspondingly, how do you find the least common denominator?
Here are the steps to follow:
What is least common denominator example?
Multiples of 6 are 12, 18, 24, 30, 36, 42, 48,… Multiples of 15 are 30, 45, 60, 75, 90,…. Now, when you look at the list of multiples, you can see that 30 is the smallest number that appears in each list. Therefore, the least common denominator of 1/5, 1/6 and 1/15 is 30.
How can we find LCM?
After you’ve calculated a least common multiple, always check to be sure your answer can be divided evenly by both numbers. Find the LCM of these sets of numbers. Multiply each factor the greatest number of times it occurs in any of the numbers. 9 has two 3s, and 21 has one 7, so we multiply 3 two times, and 7 once.