The mixed number 100 89/40 written as an improper fraction is 4089/40
To turn the mixed number 100 89/40 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 100 × 40 = 4000.
After that, add the result to the numerator of the fractional part: 4000 + 89 = 4089.
Next, Write the sum of the previous step on the original denominator: 4089/40.
This means that 100 89/40, as an improper fraction, equals 4089/40.
See also: 100 89/40 as a decimal