Answer:
?
Step-by-step explanation:
By difference I think you mean how far away from? I don't really know what you mean by this but I will try to help.
1/2-4=-3 1/2
2-(-3 1/2)=5 1/2
-3 1/2
5 1/2
Above is a fraction.
I hope that I helped. Sorry if it wasn't the answer you were looking for.
