10/66 as a percentage is 15.15%. This value comes from rounding the exact result to two decimal places, which makes it easy to read and use in everyday situations.
The fraction 10/66 can also be simplified to 5/33, but the decimal and percentage forms are often more helpful when comparing sizes or working with budgets, grades, or statistics. Seeing it as 15.15% lets you quickly understand that it represents a little more than one‑tenth of a whole.
In practical terms, if you had 66 items and took 10 of them, you would have taken about 15 out of every 100 items. This kind of quick mental check is useful in school projects, sports stats, or any place where percentages give a clearer picture than raw fractions.
