The fraction 64/90 is equal to 71.11% when converted to a percentage. This percentage is rounded to the nearest two decimal places. It's a bit more than two-thirds of the whole, which means if you had 90 items and took away 64 of them, you'd be left with about 29% remaining.
In everyday situations, you might come across this fraction or percentage in various contexts. For example, if 64 out of 90 students passed a test, you could say that 71.11% of the class succeeded. Or if a basketball player made 64 out of 90 free throw attempts over a season, their free throw percentage would be 71.11%. This percentage is often used to represent a fairly good success rate or a significant majority in many fields.