The mixed number 39 81/40 written as an improper fraction is 1641/40
To turn the mixed number 39 81/40 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 39 × 40 = 1560.
After that, add the result to the numerator of the fractional part: 1560 + 81 = 1641.
Next, Write the sum of the previous step on the original denominator: 1641/40.
This means that 39 81/40, as an improper fraction, equals 1641/40.
See also: 39 81/40 as a decimal