Respuesta :

Multiples of 4: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40
Multiples of 5: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50
Common: 20, 40
3,6,9,12,15,18,21,24,27,30
6,12,18,24,30,36,42,48,54,60
Common multiples are: 6,12,18,24,30