The mixed number 57 12/40 written as an improper fraction is 2292/40
To turn the mixed number 57 12/40 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 + 12 = 2292.
Next, Write the sum of the previous step on the original denominator: 2292/40.
This means that 57 12/40, as an improper fraction, equals 2292/40.
See also: 57 12/40 as a decimal