How do you use a decimal to express the temperature?

To express temperature using a decimal, you typically use the Celsius or Fahrenheit scale. For example, if the temperature is 25.5 degrees Celsius, you would write it as 25.5°C. Similarly, if the temperature is 72.3 degrees Fahrenheit, you would write it as 72.3°F. Decimals allow for more precise measurements of temperature compared to whole numbers.