30/100 = 30%
The fraction 30/100 represents 30%, a value that appears often in everyday life. For example, a store might offer 30% off a jacket, or a weather report might say there is a 30% chance of rain.
You can picture 30/100 as 30 shaded squares in a grid of 100 squares. It is also close to one-third, so a quick estimate is to imagine dividing something into three nearly equal parts and focusing on one part.
A common mistake is thinking 30% means 30 items no matter how large the total is. It means 30 out of every 100, so the actual number changes depending on the size of the whole group.
