By rename do you mean turn into an improper fraction?
if so, it is because without turning it into an improper fraction, you cannot subtract 3/4 from 1/4 because you would get a negative answer and that would be incorrect
Abyssal Plain I think. Sorry if it’s wrong.
Answer:
Great Job! I am very proud of you! I hope u do it again! yipee! woo hoo! Yesss!
