The mixed number 56 87/80 written as an improper fraction is 4567/80
To turn the mixed number 56 87/80 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 56 × 80 = 4480.
After that, add the result to the numerator of the fractional part: 4480 + 87 = 4567.
Next, Write the sum of the previous step on the original denominator: 4567/80.
This means that 56 87/80, as an improper fraction, equals 4567/80.
See also: 56 87/80 as a decimal