How to convert 21 1/4 to a decimal number?

Some mixed numbers, such as 21 1/4, 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 1/4 to a decimal number

  1. Multiply the whole number by the denominator: 21 × 4 = 84
  2. Add this result to the numerator: 84 + 1 = 85
  3. Divide the previous result by the denominator: 85 ÷ 4 = 21.25

So the mixed number 21 1 4 as a decimal is 21.25.

Please note that you can also express this result as a fraction: 85/4.