The mixed number 100 90/40 written as an improper fraction is 4090/40
To turn the mixed number 100 90/40 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 + 90 = 4090.
Next, Write the sum of the previous step on the original denominator: 4090/40.
This means that 100 90/40, as an improper fraction, equals 4090/40.
See also: 100 90/40 as a decimal