The mixed number 80 3/8 written as an improper fraction is 643/8
To turn the mixed number 80 3/8 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 80 × 8 = 640.
After that, add the result to the numerator of the fractional part: 640 + 3 = 643.
Next, Write the sum of the previous step on the original denominator: 643/8.
This means that 80 3/8, as an improper fraction, equals 643/8.
See also: 80 3/8 as a decimal