The mixed number 81 1/4 written as an improper fraction is 325/4
To turn the mixed number 81 1/4 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 81 × 4 = 324.
After that, add the result to the numerator of the fractional part: 324 + 1 = 325.
Next, Write the sum of the previous step on the original denominator: 325/4.
This means that 81 1/4, as an improper fraction, equals 325/4.
See also: 81 1/4 as a decimal