so.. three quarters of nine is eight fifteen? you aren't using your explanatory words to explain how it works..

the use of, and the difference between, different prepositions suggests that both of them can not be the same..

a quarter of the ninth hour is nine fifteen, is it not? we start at the ninth hour, then work a quarter of an hour towards the tenth. so nine fifteen is.. not a quarter of ten?

(i have had english teachers read my name off of attendance sheets as brandon- i stopped physically attending grade eleven english when it was a sri lanken woman who could not spell on the blackboard preposition.. i'm sorry, tdsb to the win or tdsb of the win?)