Divide 3/5 inches by 3/25 inches

Yeah. I haven't done math in months.

3/5 / 3/25 = 15/25 / 3/25 = 5

Larry - I had algebra back in the late 50's and 60's

Rule
(a/b)/(c/d) = (a/b)x(d/c) = (ad)/(bc)