The LCM is 20
20, 40, 60
20, 40 and 60
20, 40, 60
The first three multiples of 4 are 4, 8 and 12. For them to be common, they need to be compared to another set of multiples.
The first three multiples of 4 are 4, 8 and 12. For them to be common, they need to be compared to another set of multiples.
20, 40, and 60
40, 80, 120
20, 40, 60
40, 80 ,120.
60, 120, 180
They are: 40 80 and 120
20, 40, 60