The mixed number 108 21/80 written as an improper fraction is 8661/80
To turn the mixed number 108 21/80 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 108 × 80 = 8640.
After that, add the result to the numerator of the fractional part: 8640 + 21 = 8661.
Next, Write the sum of the previous step on the original denominator: 8661/80.
This means that 108 21/80, as an improper fraction, equals 8661/80.
See also: 108 21/80 as a decimal