Sagot :
Answer:
4 and 3
Step-by-step explanation:
So let us list all the factors of 21 and 28:
21: 1, 3, 7, 21
28: 1, 2, 4, 7, 14, 28
The greatest factor they have in common is 7, so the answer is 7 fish per hour.
It just means that Liam went fishing for 21 / 7 = 3 hours and Leo went fishing for 28/7 = 4.
Hope this helps.