We have in total 2 1/2 so we need to divide this in 5 equal parts
First we will convert our mixed number into a fraction
[tex]2\frac{1}{2}=\frac{4}{2}+\frac{1}{2}=\frac{5}{2}[/tex]Then we divide between 5
[tex]\frac{5}{2}÷\frac{5}{1}=\frac{5\ast1}{2\ast5}=\frac{1}{2}[/tex]ANSWER
1/2 case