The mixed number 81 9/10 written as an improper fraction is 819/10
To turn the mixed number 81 9/10 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 81 × 10 = 810.
After that, add the result to the numerator of the fractional part: 810 + 9 = 819.
Next, Write the sum of the previous step on the original denominator: 819/10.
This means that 81 9/10, as an improper fraction, equals 819/10.
See also: 81 9/10 as a decimal