The mixed number 170 57/40 written as an improper fraction is 6857/40
To turn the mixed number 170 57/40 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 170 × 40 = 6800.
After that, add the result to the numerator of the fractional part: 6800 + 57 = 6857.
Next, Write the sum of the previous step on the original denominator: 6857/40.
This means that 170 57/40, as an improper fraction, equals 6857/40.
See also: 170 57/40 as a decimal