The mixed number 57 70/80 written as an improper fraction is 4630/80
To turn the mixed number 57 70/80 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 57 × 80 = 4560.
After that, add the result to the numerator of the fractional part: 4560 + 70 = 4630.
Next, Write the sum of the previous step on the original denominator: 4630/80.
This means that 57 70/80, as an improper fraction, equals 4630/80.
See also: 57 70/80 as a decimal