The mixed number 57 99/20 written as an improper fraction is 1239/20
To turn the mixed number 57 99/20 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 57 × 20 = 1140.
After that, add the result to the numerator of the fractional part: 1140 + 99 = 1239.
Next, Write the sum of the previous step on the original denominator: 1239/20.
This means that 57 99/20, as an improper fraction, equals 1239/20.
See also: 57 99/20 as a decimal