The mixed number 12 21/25 written as an improper fraction is 321/25
To turn the mixed number 12 21/25 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 12 × 25 = 300.
After that, add the result to the numerator of the fractional part: 300 + 21 = 321.
Next, Write the sum of the previous step on the original denominator: 321/25.
This means that 12 21/25, as an improper fraction, equals 321/25.
See also: 12 21/25 as a decimal