The mixed number 57 91/40 written as an improper fraction is 2371/40
To turn the mixed number 57 91/40 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 57 × 40 = 2280.
After that, add the result to the numerator of the fractional part: 2280 + 91 = 2371.
Next, Write the sum of the previous step on the original denominator: 2371/40.
This means that 57 91/40, as an improper fraction, equals 2371/40.
See also: 57 91/40 as a decimal