357/500 = 71.4%
The fraction 357/500 can describe everyday situations such as getting 357 questions right out of 500 or completing 357 of 500 tasks. That is 71.4%, so it represents a little more than seven-tenths of the total.
To picture it quickly, imagine a group of 10 equal sections with about 7 filled in, plus a small part of another section. You can also estimate it as roughly 70%, while remembering that the exact value is slightly higher.
A common mistake is to treat 71.4% as if it means 71.4 whole items. Percentages describe a portion of a total, so the actual number represented depends on what the 500 stands for.