The mixed number 9 30/40 written as an improper fraction is 390/40
To turn the mixed number 9 30/40 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 9 × 40 = 360.
After that, add the result to the numerator of the fractional part: 360 + 30 = 390.
Next, Write the sum of the previous step on the original denominator: 390/40.
This means that 9 30/40, as an improper fraction, equals 390/40.
See also: 9 30/40 as a decimal