The mixed number 78 45/40 written as an improper fraction is 3165/40
To turn the mixed number 78 45/40 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 + 45 = 3165.
Next, Write the sum of the previous step on the original denominator: 3165/40.
This means that 78 45/40, as an improper fraction, equals 3165/40.
See also: 78 45/40 as a decimal