Mr. McCann runs every 4 days and cycles every 12 days. If he did both activities today, in how many days will he run and cycle on the same day again? Find the LCM of 4 and 12.

Answer 1

To find the least common multiple (LCM) of 4 and 12, we can list the multiples of each number until we find the smallest common multiple.

Multiples of 4: 4, 8, 12, 16, 20, 24, ...

Multiples of 12: 12, 24, 36, ...

We can see that the smallest common multiple of 4 and 12 is 12.

Therefore, Mr. McCann will run and cycle on the same day again in 12 days.