The mixed number 3 31/400 written as an improper fraction is 1231/400
To turn the mixed number 3 31/400 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 3 × 400 = 1200.
After that, add the result to the numerator of the fractional part: 1200 + 31 = 1231.
Next, Write the sum of the previous step on the original denominator: 1231/400.
This means that 3 31/400, as an improper fraction, equals 1231/400.
See also: 3 31/400 as a decimal