How to convert 21 3/4 to a decimal number?

Some mixed numbers, such as 21 3/4, 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 3/4 to a decimal number

  1. Multiply the whole number by the denominator: 21 × 4 = 84
  2. Add this result to the numerator: 84 + 3 = 87
  3. Divide the previous result by the denominator: 87 ÷ 4 = 21.75

So the mixed number 21 3 4 as a decimal is 21.75.

Please note that you can also express this result as a fraction: 87/4.