What is the least common denominator of 15 12 and 8?

Answer 1

There is none because Least Common Denominator (or LCD) refers to the Least Common Multiple (LCM) of the denominators of two or more fractions or mixed numbers. Even if you converted your whole numbers (x) to their fraction equivalents (x/1), the LCD would always be 1.

If those are denominators, the LCD is 120.

Answer 2

The least common denominator (LCD) of 15, 12, and 8 is 120. To find the LCD, you can list the multiples of each number and find the smallest number that all three lists have in common. For 15, the multiples are 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, etc. For 12, the multiples are 12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, etc. And for 8, the multiples are 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120, etc. The smallest number that appears in all three lists is 120, so that is the least common denominator.