The mixed number 28 31/8 written as an improper fraction is 255/8
To turn the mixed number 28 31/8 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 28 × 8 = 224.
After that, add the result to the numerator of the fractional part: 224 + 31 = 255.
Next, Write the sum of the previous step on the original denominator: 255/8.
This means that 28 31/8, as an improper fraction, equals 255/8.
See also: 28 31/8 as a decimal