12/18 as a percentage is 66.67%. This number tells you how much of a whole the fraction represents when it’s turned into a percent. It’s a handy way to compare parts of different totals.
The fraction 12/18 can be reduced to its simplest form, 2/3. Both numbers share the same value, just expressed with smaller numbers. Using the reduced fraction makes it easier to see relationships with other common fractions.
Percentages like 66.67% are often used in everyday situations—such as grading, sales discounts, or statistics—because they give a quick sense of proportion. Knowing the percent for a fraction helps you communicate the size of a part in a way most people understand instantly.
