The mixed number 12 21/32 written as an improper fraction is 405/32
To turn the mixed number 12 21/32 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 12 × 32 = 384.
After that, add the result to the numerator of the fractional part: 384 + 21 = 405.
Next, Write the sum of the previous step on the original denominator: 405/32.
This means that 12 21/32, as an improper fraction, equals 405/32.
See also: 12 21/32 as a decimal