How to convert 21 6/8 to a decimal number?

Some mixed numbers, such as 21 6/8, 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 6/8 to a decimal number

  1. Multiply the whole number by the denominator: 21 × 8 = 168
  2. Add this result to the numerator: 168 + 6 = 174
  3. Divide the previous result by the denominator: 174 ÷ 8 = 21.75

So the mixed number 21 6 8 as a decimal is 21.75.

Please note that you can also express this result as a fraction by simplifying 174/8 = 87/4.