The mixed number 21 138/400 written as an improper fraction is 8538/400
To turn the mixed number 21 138/400 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 + 138 = 8538.
Next, Write the sum of the previous step on the original denominator: 8538/400.
This means that 21 138/400, as an improper fraction, equals 8538/400.
See also: 21 138/400 as a decimal