The mixed number 105 5/80 written as an improper fraction is 8405/80
To turn the mixed number 105 5/80 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 105 × 80 = 8400.
After that, add the result to the numerator of the fractional part: 8400 + 5 = 8405.
Next, Write the sum of the previous step on the original denominator: 8405/80.
This means that 105 5/80, as an improper fraction, equals 8405/80.
See also: 105 5/80 as a decimal