4/5 = 80%
A value of 80% can show up in everyday life, like getting most questions right on a quiz or having four out of five seats filled. It often describes something that is mostly complete but still has a small part left.
To picture 4/5 quickly, imagine a shape split into five equal pieces with four shaded in. It’s close to the whole, so you can estimate it as a little less than 100%.
A common mix-up is thinking 80% means 80 out of 100 items, even when the total is different. The percentage stays the same, but the number of items it represents depends on the size of the whole.
