All percentages can be expressed as fractions over 100.
That means that
Converting percentages to fractions can be done following these steps:
Step 1: Write down the percentage as a number over 100 (
Step 2: Simplify the fraction.
A fraction can only be simplified if the numerator and denominator have a common factor other than 1.
Since 13 and 100 have no common factors higher than 1,
A "percent" (%) by definition is the "parts per one hundred". So to start, you just need to make that notation conversion.
NOW you can "simplify". In this case, 13 is already a prime number, and thus cannot be factored further. Therefore, this is also the simplest fraction form.