The mixed number 28 91/20 written as an improper fraction is 651/20
To turn the mixed number 28 91/20 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 28 × 20 = 560.
After that, add the result to the numerator of the fractional part: 560 + 91 = 651.
Next, Write the sum of the previous step on the original denominator: 651/20.
This means that 28 91/20, as an improper fraction, equals 651/20.
See also: 28 91/20 as a decimal