The mixed number 13 87/10 written as an improper fraction is 217/10
To turn the mixed number 13 87/10 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 13 × 10 = 130.
After that, add the result to the numerator of the fractional part: 130 + 87 = 217.
Next, Write the sum of the previous step on the original denominator: 217/10.
This means that 13 87/10, as an improper fraction, equals 217/10.
See also: 13 87/10 as a decimal