The fraction 80/90 is equal to 88.89% when expressed as a percentage. This means that 80 out of 90 parts represent nearly 89% of the whole. It's a pretty high percentage, showing that a significant portion is being accounted for.
In everyday situations, you might come across this fraction or percentage in various contexts. For example, if 80 out of 90 students passed a test, you could say the pass rate was 88.89%. Or if a basketball player made 80 out of 90 free throws in a season, their free throw percentage would be 88.89%. This percentage is close to 90%, indicating a high level of success or completion in many scenarios.