The mixed number 13 39/40 written as an improper fraction is 559/40
To turn the mixed number 13 39/40 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 13 × 40 = 520.
After that, add the result to the numerator of the fractional part: 520 + 39 = 559.
Next, Write the sum of the previous step on the original denominator: 559/40.
This means that 13 39/40, as an improper fraction, equals 559/40.
See also: 13 39/40 as a decimal