The mixed number 128 1/5 written as an improper fraction is 641/5
To turn the mixed number 128 1/5 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 128 × 5 = 640.
After that, add the result to the numerator of the fractional part: 640 + 1 = 641.
Next, Write the sum of the previous step on the original denominator: 641/5.
This means that 128 1/5, as an improper fraction, equals 641/5.
See also: 128 1/5 as a decimal