The mixed number 1 21/1000 written as an improper fraction is 1021/1000
To turn the mixed number 1 21/1000 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 1 × 1000 = 1000.
After that, add the result to the numerator of the fractional part: 1000 + 21 = 1021.
Next, Write the sum of the previous step on the original denominator: 1021/1000.
This means that 1 21/1000, as an improper fraction, equals 1021/1000.
See also: 1 21/1000 as a decimal