How to convert 21 3/8 to a decimal number?

Some mixed numbers, such as 21 3/8, 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 3/8 to a decimal number

  1. Multiply the whole number by the denominator: 21 × 8 = 168
  2. Add this result to the numerator: 168 + 3 = 171
  3. Divide the previous result by the denominator: 171 ÷ 8 = 21.375

So the mixed number 21 3 8 as a decimal is 21.375.

Please note that you can also express this result as a fraction: 171/8.