The mixed number 31 11/20 written as an improper fraction is 631/20
To turn the mixed number 31 11/20 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 31 × 20 = 620.
After that, add the result to the numerator of the fractional part: 620 + 11 = 631.
Next, Write the sum of the previous step on the original denominator: 631/20.
This means that 31 11/20, as an improper fraction, equals 631/20.
See also: 31 11/20 as a decimal