How to convert 21 1/5 to a decimal number?
Some mixed numbers, such as 21 1/5, 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 1/5 to a decimal number
- Multiply the whole number by the denominator: 21 × 5 = 105
- Add this result to the numerator: 105 + 1 = 106
- Divide the previous result by the denominator: 106 ÷ 5 = 21.2
So the mixed number as a decimal is 21.2.
Please note that you can also express this result as a fraction: 106/5.