The mixed number 15 18/40 written as an improper fraction is 618/40
To turn the mixed number 15 18/40 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 15 × 40 = 600.
After that, add the result to the numerator of the fractional part: 600 + 18 = 618.
Next, Write the sum of the previous step on the original denominator: 618/40.
This means that 15 18/40, as an improper fraction, equals 618/40.
See also: 15 18/40 as a decimal