Answer:
4 is your answer.
Step-by-step explanation:
You would break down both numbers into their factors.
28 is divisible by 1,2,4,7,14,and 28
60 is divisible by 1,2,3,4,5,6,10,12,15,20,30, and 60
find the common pairs: (1,1), (2,2), (4,4) Both numbers have these as factors, so find the largest one.
