To write a fraction as a percent, first remember that a percent is a ratio of a number to 100. If we want to write [tex]\frac{1}{8}[/tex] as a percent, we need to find a fraction equivalent to [tex]\frac{1}{8}[/tex] that has a 100 in the denominator. We can do this by setting up a proportion.
[tex]\frac{1}{8}[/tex] = [tex]\frac{n}{100}[/tex]
Now, we can use cross products to find the missing value.
8n = 100
÷8 ÷8 ← divide by 8 on both sides
n = 12.5
Therefore, [tex]\frac{1}{8}[/tex] is equal to [tex]\frac{12.5}{100}[/tex] or 12.5%.
