The mixed number 51 13/8 written as an improper fraction is 421/8
To turn the mixed number 51 13/8 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 51 × 8 = 408.
After that, add the result to the numerator of the fractional part: 408 + 13 = 421.
Next, Write the sum of the previous step on the original denominator: 421/8.
This means that 51 13/8, as an improper fraction, equals 421/8.
See also: 51 13/8 as a decimal