The mixed number 280 9/100 written as an improper fraction is 28009/100
To turn the mixed number 280 9/100 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 280 × 100 = 28000.
After that, add the result to the numerator of the fractional part: 28000 + 9 = 28009.
Next, Write the sum of the previous step on the original denominator: 28009/100.
This means that 280 9/100, as an improper fraction, equals 28009/100.
See also: 280 9/100 as a decimal