Answer :
Answer: 32/40
Step-by-step explanation: Our original ratio here for sugar/flour is 4/5, but as that's not an answer choice, we need to look for an answer choice where the ratio reduces to 4/5. 32/40 is the answer because 32 and 40 are multiples of 4 and 5 respectively:
32/8 =4, and
40/8=5, so
32/40 is equal to 4/5.