Answer:
17 batches
Explanation:
Divide (1 1/4 cup per batch) into 22 1/2 cups:
22 1/5 cups
---------------------- = 22.2/1.25 batches = 17.76 batches
1 1/4 cup
--------------
1 batch
One bag of flour will make 17 batches with about 3/4 batch unfinished.