I have a question about fractions and percents?

They usually quote statistics as a percentage. Statng fractions, in reference to a group of people, is less "scientific" (and often much less correct) but it is often a quicker way to communicate. One might say something like "half the Cl finished the test in 30 minutes" but an actual measurement of the test performance might reveal that it was really 45%, but the speaker got the main point across. We're always taught to reduce fractins to their "lowest terms" so it would be highly unusual (i.e., would sound rather stupid) to say 60/100ths instead of 3/5ths. Most people have a better intuitive appreciation for 3/5 than they do of 60%. And if the statistic says that it's 2/3 or 1/5, then it would be flat-ouot wrong to say 1/2, now wouldn't it? Sometimes they'll get a litle creative and say something like "two out of every 3 Americans wear ..." What they're saying is that somebody gathered some data that showed that around 66% of the people queried wear ... I don't think there is ANYONE who would say 25/100ths, not when it is equally correct and more useful to say 25%. But, also, no one is going to say something like "2/7ths of the people ..." if the statistics showed that it was more like 28% of the people.