Answer: 12 is the least common denominator
Explanation:
The least common denominator is the greatest multiple that the two denominators share.
So find the multiples of 4 and 6.
LCM of 4. is 4 ,8 ,12,16,20,24, 28,32,
LCM of 6 is 6,12,18,24,30,36, 42,48
The first multiple that they share is 12