The mixed number 20 57/8 written as an improper fraction is 217/8
To turn the mixed number 20 57/8 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 20 × 8 = 160.
After that, add the result to the numerator of the fractional part: 160 + 57 = 217.
Next, Write the sum of the previous step on the original denominator: 217/8.
This means that 20 57/8, as an improper fraction, equals 217/8.
See also: 20 57/8 as a decimal