The mixed number 72 45/8 written as an improper fraction is 621/8
To turn the mixed number 72 45/8 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 72 × 8 = 576.
After that, add the result to the numerator of the fractional part: 576 + 45 = 621.
Next, Write the sum of the previous step on the original denominator: 621/8.
This means that 72 45/8, as an improper fraction, equals 621/8.
See also: 72 45/8 as a decimal