The mixed number 21 1/5 written as an improper fraction is 106/5
To turn the mixed number 21 1/5 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 21 × 5 = 105.
After that, add the result to the numerator of the fractional part: 105 + 1 = 106.
Next, Write the sum of the previous step on the original denominator: 106/5.
This means that 21 1/5, as an improper fraction, equals 106/5.
See also: 21 1/5 as a decimal