45/100 = 45%
A value of 45% might show up in a weather forecast, such as the chance of rain, or in a survey where nearly half of people chose an option. It can also describe a discount or how much of a task is finished.
To picture 45%, imagine 100 small squares with 45 shaded, or a bar that is just short of halfway filled. Since half of 100 is 50, 45% is a little less than half.
A common point of confusion is treating a 45% chance of rain as meaning it will rain for 45% of the day. In a forecast, it refers to the chance of rain in the forecast area, not how long the rain will last.
