I think maybe the second one I’m not fully sure but I hope this might help
There are 2/8 in 1/4 and 5/10 in 1/2
Ratio of odd numbers:even numbers
Odd numbers are - 9, 37, 1
Total odd numbers- 3
Even numbers are - 2, 4, 6, 8, 14
Total even numbers- 5
odd numbers:even numbers
Answer= 3:5