The mixed number 100 80/40 written as an improper fraction is 4080/40
To turn the mixed number 100 80/40 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 + 80 = 4080.
Next, Write the sum of the previous step on the original denominator: 4080/40.
This means that 100 80/40, as an improper fraction, equals 4080/40.
See also: 100 80/40 as a decimal