The mixed number 90 18/40 written as an improper fraction is 3618/40
To turn the mixed number 90 18/40 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 90 × 40 = 3600.
After that, add the result to the numerator of the fractional part: 3600 + 18 = 3618.
Next, Write the sum of the previous step on the original denominator: 3618/40.
This means that 90 18/40, as an improper fraction, equals 3618/40.
See also: 90 18/40 as a decimal