The mixed number 21 2/80 written as an improper fraction is 1682/80
To turn the mixed number 21 2/80 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 21 × 80 = 1680.
After that, add the result to the numerator of the fractional part: 1680 + 2 = 1682.
Next, Write the sum of the previous step on the original denominator: 1682/80.
This means that 21 2/80, as an improper fraction, equals 1682/80.
See also: 21 2/80 as a decimal