The mixed number 72 45/80 written as an improper fraction is 5805/80
To turn the mixed number 72 45/80 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 72 × 80 = 5760.
After that, add the result to the numerator of the fractional part: 5760 + 45 = 5805.
Next, Write the sum of the previous step on the original denominator: 5805/80.
This means that 72 45/80, as an improper fraction, equals 5805/80.
See also: 72 45/80 as a decimal