How to find Least common denominator

[Guest]

How to find out the least common denominator of 9 / 12 and 5 / 10

[Guest]

multiples of 12 = 2x2x3

Multiples of 10 = 2x5

Hence LCM of 12 and 10 is 2x2x3x5 = 60

Hence LCD = 60

Now fractions will become as (9*5/ 12 *5 ) and (5*6 / 10*6)

REf : https://www.easycalculation.com/least-c ... inator.php

[HallsofIvy]

Nitpick: 2x2x3 are the factors of 12, not "multiples".

[HallsofIvy]

The first thing I would do is reduce 9/12 to 3/4 and 5/10 to 1/2. The least common denominator or 3/4 and 5/2 is 4.