56/70 = 80%
A value like 56/70, or 80%, could describe how many questions someone got right on a quiz. It might also show that a phone battery is mostly charged or that a store has sold most of its tickets.
To picture 80%, imagine a bar split into 10 equal parts, with 8 parts shaded. That makes it easy to see that the value is close to all of the bar, but still leaves a noticeable 20% unshaded.
One common mistake is treating 80% as the same as 80 percentage points. For example, an 80% score is not automatically 80 points if the quiz has a different total number of points.