The mixed number 4 21/100 written as an improper fraction is 421/100
To turn the mixed number 4 21/100 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 4 × 100 = 400.
After that, add the result to the numerator of the fractional part: 400 + 21 = 421.
Next, Write the sum of the previous step on the original denominator: 421/100.
This means that 4 21/100, as an improper fraction, equals 421/100.
See also: 4 21/100 as a decimal