4/5 = 80%
The fraction 4/5, or 80%, can describe many everyday situations. For example, you might finish 4 out of 5 homework problems, attend 4 out of 5 practices, or find that 80% of a group prefers a certain choice.
To picture 4/5 quickly, imagine a whole divided into five equal parts and shade four of them. It is close to the whole, leaving only one small fifth unshaded, so you can estimate it as about four-fifths or a little less than all of it.
A common mistake is thinking that 4/5 means four parts out of any number of parts. The five tells you the whole has been split into five equal sections, while the four tells you how many of those sections are included.
