The mixed number 90 1/80 written as an improper fraction is 7201/80
To turn the mixed number 90 1/80 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 90 × 80 = 7200.
After that, add the result to the numerator of the fractional part: 7200 + 1 = 7201.
Next, Write the sum of the previous step on the original denominator: 7201/80.
This means that 90 1/80, as an improper fraction, equals 7201/80.
See also: 90 1/80 as a decimal