My question comes from my MUS 204 course, which is the following: How many steps in 15-EDO should be used to approximate just perfect fifth?
I do not know how to calculate the number of steps. However, I know how to calculate the step size by dividing 1200 by 15, which is 80 cents. I also know just perfect fifth (ratio 3/2) is 702 cents.
What steps do we use to find the correct answer to the question above? (The answer, according to my answer sheet, is 9 steps.)