The mixed number 42 17/20 written as an improper fraction is 857/20
To turn the mixed number 42 17/20 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 42 × 20 = 840.
After that, add the result to the numerator of the fractional part: 840 + 17 = 857.
Next, Write the sum of the previous step on the original denominator: 857/20.
This means that 42 17/20, as an improper fraction, equals 857/20.
See also: 42 17/20 as a decimal