How to convert 21 10/8 to a decimal number?

Some mixed numbers, such as 21 10/8, 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 10/8 to a decimal number

  1. Multiply the whole number by the denominator: 21 × 8 = 168
  2. Add this result to the numerator: 168 + 10 = 178
  3. Divide the previous result by the denominator: 178 ÷ 8 = 22.25

So the mixed number 21 10 8 as a decimal is 22.25.

Please note that you can also express this result as a fraction by simplifying 178/8 = 89/4.