I have wondered about this lately. Is there any such thing as 1 time - 1/1, 1/2, 1/4 time, etc.
I suppose you could break anything down to 1, much in the same way as you could break down 4, 6, 8, 10, etc., into 2, or how you could break 6, 9 or 12 into 3. However, there is a difference in feel...