The mixed number 99 30/40 written as an improper fraction is 3990/40
To turn the mixed number 99 30/40 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 + 30 = 3990.
Next, Write the sum of the previous step on the original denominator: 3990/40.
This means that 99 30/40, as an improper fraction, equals 3990/40.
See also: 99 30/40 as a decimal