How to convert 21 5/10 to a decimal number?

Some mixed numbers, such as 21 5/10, 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 5/10 to a decimal number

  1. Multiply the whole number by the denominator: 21 × 10 = 210
  2. Add this result to the numerator: 210 + 5 = 215
  3. Divide the previous result by the denominator: 215 ÷ 10 = 21.5

So the mixed number 21 5 10 as a decimal is 21.5.

Please note that you can also express this result as a fraction by simplifying 215/10 = 43/2.