The mixed number 15 57/20 written as an improper fraction is 357/20
To turn the mixed number 15 57/20 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 15 × 20 = 300.
After that, add the result to the numerator of the fractional part: 300 + 57 = 357.
Next, Write the sum of the previous step on the original denominator: 357/20.
This means that 15 57/20, as an improper fraction, equals 357/20.
See also: 15 57/20 as a decimal