Answers:
1.) Each person gets half a bar. (1/2) (4 is half of 8. As such, breaking each bar in half and distributing it that way would make it so that everyone gets the same amount.)
Answer: 1/2
2.) Each person gets 2 packages.
Answer: 2/1 or 2
3.) Each rabbit gets 10/17 ths of a carrot.
10/17 cannot be simplified any further than it already is, as 17 is a prime number. This means that every rabbit simply gets 10/17ths of a carrot.