Answer :
Say we have listed the first few multiples of 4 and 5: the common multiples are those that are found in both lists: The multiples of 4 are: 4,8,12,16,20,24,28,32,36,40,44,... The multiples of 5 are: 5,10,15,20,25,30,35,40,45,50,...
Multiples of 4 are- 4, 8 ,12, 16, 20, 24, 28, 32, 36, 40, 44, 48
Multiples of 5 are- 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60
Multiples of 5 are- 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60