56/80 = 70%
A value like 56/80, or 70%, shows up in everyday life when most but not all of something is complete. For example, you might finish 70% of a homework assignment, answer 70% of a quiz correctly, or have 70% of your phone battery left.
You can picture it as 7 out of every 10 equal parts being shaded or filled. It is also easy to estimate as about two-thirds, though 70% is a little more than two-thirds.
A common mistake is thinking 70% means 70 out of 100 actual items are always involved. It simply describes a proportion, so the same amount can represent 70% whether there are 10 items, 80 items, or another total.