The mixed number 129 11/80 written as an improper fraction is 10331/80
To turn the mixed number 129 11/80 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 129 × 80 = 10320.
After that, add the result to the numerator of the fractional part: 10320 + 11 = 10331.
Next, Write the sum of the previous step on the original denominator: 10331/80.
This means that 129 11/80, as an improper fraction, equals 10331/80.
See also: 129 11/80 as a decimal