The mixed number 21 3/5 written as an improper fraction is 108/5
To turn the mixed number 21 3/5 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 + 3 = 108.
Next, Write the sum of the previous step on the original denominator: 108/5.
This means that 21 3/5, as an improper fraction, equals 108/5.
See also: 21 3/5 as a decimal