The mixed number 40 12/10 written as an improper fraction is 412/10
To turn the mixed number 40 12/10 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 40 × 10 = 400.
After that, add the result to the numerator of the fractional part: 400 + 12 = 412.
Next, Write the sum of the previous step on the original denominator: 412/10.
This means that 40 12/10, as an improper fraction, equals 412/10.
See also: 40 12/10 as a decimal