The mixed number 39 99/10 written as an improper fraction is 489/10
To turn the mixed number 39 99/10 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 39 × 10 = 390.
After that, add the result to the numerator of the fractional part: 390 + 99 = 489.
Next, Write the sum of the previous step on the original denominator: 489/10.
This means that 39 99/10, as an improper fraction, equals 489/10.
See also: 39 99/10 as a decimal