The mixed number 13 87/40 written as an improper fraction is 607/40
To turn the mixed number 13 87/40 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 + 87 = 607.
Next, Write the sum of the previous step on the original denominator: 607/40.
This means that 13 87/40, as an improper fraction, equals 607/40.
See also: 13 87/40 as a decimal