The mixed number 99 90/80 written as an improper fraction is 8010/80
To turn the mixed number 99 90/80 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 99 × 80 = 7920.
After that, add the result to the numerator of the fractional part: 7920 + 90 = 8010.
Next, Write the sum of the previous step on the original denominator: 8010/80.
This means that 99 90/80, as an improper fraction, equals 8010/80.
See also: 99 90/80 as a decimal