The mixed number 78 89/40 written as an improper fraction is 3209/40
To turn the mixed number 78 89/40 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 78 × 40 = 3120.
After that, add the result to the numerator of the fractional part: 3120 + 89 = 3209.
Next, Write the sum of the previous step on the original denominator: 3209/40.
This means that 78 89/40, as an improper fraction, equals 3209/40.
See also: 78 89/40 as a decimal