First express it in common denominator.
The common denominator is 36 in this case (4x9) and (9x4)
So (8 over 9)cups would be equal to (32 over
36)cups.[by multiplying it by 4]
and
(1 over 4)cups would be equal to (9 over 36)cups.[by multiplying it by 9]
(32over36)cup divided by (9over36)cup=3+(5over36)cup [since they have a common denominator now]
So Susie can scoop out 3 servings of (9 over 36)/(1 over 4) cups of ice cream with a remainder of (5 over 36)cup