The mixed number 45 72/80 written as an improper fraction is 3672/80
To turn the mixed number 45 72/80 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 45 × 80 = 3600.
After that, add the result to the numerator of the fractional part: 3600 + 72 = 3672.
Next, Write the sum of the previous step on the original denominator: 3672/80.
This means that 45 72/80, as an improper fraction, equals 3672/80.
See also: 45 72/80 as a decimal