21/42 = 50%
A value like 50% shows up in everyday life when a store offers half off or a weather app says there’s an even chance of rain. The fraction 21/42 can describe a group where 21 out of 42 people chose the same option.
To picture it quickly, imagine a pizza cut into two equal halves: this value is one full half. You can also think of a progress bar filled right to the middle.
One common point of confusion is mixing up 50% with 50 items. The percentage describes a share of the whole, so the number of items it represents depends on how large the group is.
