Respuesta :

Answer:

6

Step-by-step explanation:

hcf stands for "highest common factor"

factors of 12= 1,2,3,4,6,12

factors of 30=1,2,3,5,6,10,15,30

factors of 48= 1,2,3,4,6,8,12,16,24

6 is the highest overlapping factor so its is the "hcf".