Answer:
hi there
Step-by-step explanation:
the 15 and 20
15: (15,30,45,60,75,90,105,120,135)
20:(20,40,60,80,100,120,)
(15,20) LCM=60
_________________
4 and 12
4:(8, 12, 16,)
12: (0, 12, 24)
(4,12) LCM=12
__________
5 and 11
5:(50, 55, 60)
11: (44, 55, 66,)
(5,11) LCM=55
i hope this helps you out
Have a great morning
FaithRawlins14
