How to convert 21 3/6 to a decimal number?

Some mixed numbers, such as 21 3/6, 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 21 3/6 to a decimal number

  1. Multiply the whole number by the denominator: 21 × 6 = 126
  2. Add this result to the numerator: 126 + 3 = 129
  3. Divide the previous result by the denominator: 129 ÷ 6 = 21.5

So the mixed number 21 3 6 as a decimal is 21.5.

Please note that you can also express this result as a fraction by simplifying 129/6 = 43/2.