Divide the numerator and denominator. You may or may not get a decimal. Move the decimal point over too the right two place values. You will then get a percentage. If it is a whole number, add two zeros behind and you'll get your percentage.
For example:
10:2 is my ratio
10:2 is the same as 10/2 = 5
5 is the same as 5.00
move the decimal point to the right two place values
To write a fraction as a percent, we can convert it to an equivalent fraction with a denominator of 100. Another way to write a fraction as a percent is to divide its numerator by its denominator, then convert the resulting decimal to a percent.
