Question

3. LCM of 24 and 90 is?​

Answer 1

Answer:

Least common multiple (LCM) of 24 and 90 is 360.

Step-by-step explanation:

Answer 2

When you find lowest common multiples, I prefer to use a method that I call the modulus (%) method.

It works by taking the largest number , 90, modulus, %, the smallest number, 24.

This gets you 90 % 24, which is 18.

Then you take the lowest number and modulus the 1st answer.

Then you take the 1st answer and modulus the 2nd answer.

This carries on until the answer is 0, in which case, the HCF is the lowest number in that equation.

Then, you divide one of the original numbers by the HCF and times the answer by the other number. This gives you the LCM.

For LCM of 24, 90:

90 % 24 = 18

24 % 18 = 6

18 % 6 = 0

Therefore HCF = 6

90/6 = 15

15 * 24 = 360

LCM of 24, 90 is 360.