Since the LCM is 12 then the common multiples are multiples of 12
12, 24, 36, 48
Look at the multiples of 6. The smallest and greatest multiples of 6 that can be divided evenly by 4 are 12 and 48. So the common multiples of 4 and 6 up to 50 are 12, 24, 36, and 48.
28 and 56
12 and all its multiples.
It is 12 and its multiples.
To find the number of multiples of 4 in 50, we divide 50 by 4. The result is 12 with a remainder of 2. This means there are 12 full multiples of 4 in 50, which are 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, and 48.