How to convert 21 7/10 to a decimal number?

Some mixed numbers, such as 21 7/10, 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 7/10 to a decimal number

  1. Multiply the whole number by the denominator: 21 × 10 = 210
  2. Add this result to the numerator: 210 + 7 = 217
  3. Divide the previous result by the denominator: 217 ÷ 10 = 21.7

So the mixed number 21 7 10 as a decimal is 21.7.

Please note that you can also express this result as a fraction: 217/10.