The mixed number 30 9/40 written as an improper fraction is 1209/40
To turn the mixed number 30 9/40 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 30 × 40 = 1200.
After that, add the result to the numerator of the fractional part: 1200 + 9 = 1209.
Next, Write the sum of the previous step on the original denominator: 1209/40.
This means that 30 9/40, as an improper fraction, equals 1209/40.
See also: 30 9/40 as a decimal