The mixed number 21 215/400 written as an improper fraction is 8615/400
To turn the mixed number 21 215/400 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 21 × 400 = 8400.
After that, add the result to the numerator of the fractional part: 8400 + 215 = 8615.
Next, Write the sum of the previous step on the original denominator: 8615/400.
This means that 21 215/400, as an improper fraction, equals 8615/400.
See also: 21 215/400 as a decimal