The mixed number 42 71/80 written as an improper fraction is 3431/80
To turn the mixed number 42 71/80 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 42 × 80 = 3360.
After that, add the result to the numerator of the fractional part: 3360 + 71 = 3431.
Next, Write the sum of the previous step on the original denominator: 3431/80.
This means that 42 71/80, as an improper fraction, equals 3431/80.
See also: 42 71/80 as a decimal