Why is body temperature written in decimals and not fractions? The answer is based on how temperature is usually expressed. For instance, if you are buying something, it is written in decimals. That’s because it is less than a half-degree Celsius. On the other hand, if the temperature is 98.6 degrees Celsius, then it is 98.6 degrees Celsius.
The easiest way to remember why your body temperature is written in decimals and not fractions is to know how to convert the decimal to a fraction. To do this, start by converting the decimal to a number that you know. For example, 0.5 is half an inch, whereas 0.25 is a quarter. A third is equal to 0.3333. You can also use decimals to convert percentages.