The mixed number 170 57/20 written as an improper fraction is 3457/20
To turn the mixed number 170 57/20 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 170 × 20 = 3400.
After that, add the result to the numerator of the fractional part: 3400 + 57 = 3457.
Next, Write the sum of the previous step on the original denominator: 3457/20.
This means that 170 57/20, as an improper fraction, equals 3457/20.
See also: 170 57/20 as a decimal