The mixed number 18 88/40 written as an improper fraction is 808/40
To turn the mixed number 18 88/40 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 18 × 40 = 720.
After that, add the result to the numerator of the fractional part: 720 + 88 = 808.
Next, Write the sum of the previous step on the original denominator: 808/40.
This means that 18 88/40, as an improper fraction, equals 808/40.
See also: 18 88/40 as a decimal