The mixed number 20 21/25 written as an improper fraction is 521/25
To turn the mixed number 20 21/25 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 20 × 25 = 500.
After that, add the result to the numerator of the fractional part: 500 + 21 = 521.
Next, Write the sum of the previous step on the original denominator: 521/25.
This means that 20 21/25, as an improper fraction, equals 521/25.
See also: 20 21/25 as a decimal