The mixed number 3 69/80 written as an improper fraction is 309/80
To turn the mixed number 3 69/80 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 3 × 80 = 240.
After that, add the result to the numerator of the fractional part: 240 + 69 = 309.
Next, Write the sum of the previous step on the original denominator: 309/80.
This means that 3 69/80, as an improper fraction, equals 309/80.
See also: 3 69/80 as a decimal