How do you figure the percentage of ratios for example 30:30 what would the percentage be? How do you divide them and what number do you divide by what number?

Answer 1

30/30 = 30/30 = 1 or 100%

Divide the numerator by the denominator.

3:4 = 3/4 = 0.75 = 75%

http://www.math.com/school/subject1/lessons/S1U2L1GL.html#sm1