Remember, the trick to dividing fractions is to use keep/change/flip.
First, keep your 5/2 the same. Second, change your division sign to a multiplication sign. Third, flip your 9/4 to get 4/9. Multiply!
Mixed number form: 1 1/9
Exact form: 10/9
Decimal form: 1.1 repeating
Hope this helps!
-abagalecoleman