60, 120, 180, 240, 300.
-55
The first 5 multiples of 12 are: 12, 24, 36, 48, and 60.The first 5 multiples of 15 are: 15, 30, 45, 60, and 75.
The first 3 common multiples of 4 and 5 are: 20, 40, and 60.
The first five multiples of 12: 12, 24, 36, 48, 60
-15
The first 5 multiples of 4 and 20 are 20, 40, 60, 80, 100
20, 40, 60
20, 40, 60
30 and 60
60, 120, 180, 240, 300
60 and all multiples of 60.
The first twelve multiples of 5 are: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55 and 60.