How to convert 21 1/7 to a decimal number?

Some mixed numbers, such as 21 1/7, 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 1/7 to a decimal number

  1. Multiply the whole number by the denominator: 21 × 7 = 147
  2. Add this result to the numerator: 147 + 1 = 148
  3. Divide the previous result by the denominator: 148 ÷ 7 = 21.142857142857

So the mixed number 21 1 7 as a decimal is 21.142857142857.

Please note that you can also express this result as a fraction: 148/7.