The mixed number 99 78/40 written as an improper fraction is 4038/40
To turn the mixed number 99 78/40 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 99 × 40 = 3960.
After that, add the result to the numerator of the fractional part: 3960 + 78 = 4038.
Next, Write the sum of the previous step on the original denominator: 4038/40.
This means that 99 78/40, as an improper fraction, equals 4038/40.
See also: 99 78/40 as a decimal