The mixed number 18 51/20 written as an improper fraction is 411/20
To turn the mixed number 18 51/20 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 18 × 20 = 360.
After that, add the result to the numerator of the fractional part: 360 + 51 = 411.
Next, Write the sum of the previous step on the original denominator: 411/20.
This means that 18 51/20, as an improper fraction, equals 411/20.
See also: 18 51/20 as a decimal