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?

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

To find the percentage of a ratio, you can follow these steps:

Step 1: Add the two numbers of the ratio. In the case of 30:30, the total would be 30 + 30 = 60.

Step 2: Divide one of the numbers by the total obtained in the previous step. It doesn't matter which number you choose to divide by, as long as you are consistent. Let's divide 30 by 60.

30 ÷ 60 = 0.5

Step 3: Multiply the result by 100 to convert it to a percentage.

0.5 × 100 = 50%

Therefore, the percentage of the ratio 30:30 is 50%.

In general, to find the percentage of a ratio, you divide one of the numbers in the ratio by the sum of both numbers and then multiply the result by 100.