Answer :
All this is asking you to do is find the LCM (least common multiple) of 8 and 6. So if you list them out this is what you get:
6: 6,12,18,24
8:8,16,24,32
So you can see that the multiple 24 is common between them. Now just add the two together and you have your answer: 48$
6: 6,12,18,24
8:8,16,24,32
So you can see that the multiple 24 is common between them. Now just add the two together and you have your answer: 48$