How to convert 20 1/2 to a decimal number?

Some mixed numbers, such as 20 1/2, represent a value that can also be expressed as a decimal (which can make certain calculations and comparisons easier to perform).

Step-by-step conversion of 20 1/2 to a decimal number

  1. Multiply the whole number by the denominator: 20 × 2 = 40
  2. Add this result to the numerator: 40 + 1 = 41
  3. Divide the previous result by the denominator: 41 ÷ 2 = 20.5

So the mixed number 20 1 2 as a decimal is 20.5.

Please note that you can also express this result as a fraction: 41/2.