The mixed number 10 21/400 written as an improper fraction is 4021/400
To turn the mixed number 10 21/400 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 10 × 400 = 4000.
After that, add the result to the numerator of the fractional part: 4000 + 21 = 4021.
Next, Write the sum of the previous step on the original denominator: 4021/400.
This means that 10 21/400, as an improper fraction, equals 4021/400.
See also: 10 21/400 as a decimal