How to convert 20 9/9 to a decimal number?

Some mixed numbers, such as 20 9/9, 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 9/9 to a decimal number

  1. Multiply the whole number by the denominator: 20 × 9 = 180
  2. Add this result to the numerator: 180 + 9 = 189
  3. Divide the previous result by the denominator: 189 ÷ 9 = 21

So the mixed number 20 9 9 as a decimal is 21.

Please note that you can also express this result as a fraction by simplifying 189/9 = 21/1.