The mixed number 78 39/8 written as an improper fraction is 663/8
To turn the mixed number 78 39/8 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 78 × 8 = 624.
After that, add the result to the numerator of the fractional part: 624 + 39 = 663.
Next, Write the sum of the previous step on the original denominator: 663/8.
This means that 78 39/8, as an improper fraction, equals 663/8.
See also: 78 39/8 as a decimal