The mixed number 78 66/80 written as an improper fraction is 6306/80
To turn the mixed number 78 66/80 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 78 × 80 = 6240.
After that, add the result to the numerator of the fractional part: 6240 + 66 = 6306.
Next, Write the sum of the previous step on the original denominator: 6306/80.
This means that 78 66/80, as an improper fraction, equals 6306/80.
See also: 78 66/80 as a decimal