The mixed number 12 3/40 written as an improper fraction is 483/40
To turn the mixed number 12 3/40 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 12 × 40 = 480.
After that, add the result to the numerator of the fractional part: 480 + 3 = 483.
Next, Write the sum of the previous step on the original denominator: 483/40.
This means that 12 3/40, as an improper fraction, equals 483/40.
See also: 12 3/40 as a decimal