The mixed number 128 55/40 written as an improper fraction is 5175/40
To turn the mixed number 128 55/40 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 128 × 40 = 5120.
After that, add the result to the numerator of the fractional part: 5120 + 55 = 5175.
Next, Write the sum of the previous step on the original denominator: 5175/40.
This means that 128 55/40, as an improper fraction, equals 5175/40.
See also: 128 55/40 as a decimal