The mixed number 4 1/5 written as an improper fraction is 21/5
To turn the mixed number 4 1/5 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 4 × 5 = 20.
After that, add the result to the numerator of the fractional part: 20 + 1 = 21.
Next, Write the sum of the previous step on the original denominator: 21/5.
This means that 4 1/5, as an improper fraction, equals 21/5.
See also: 4 1/5 as a decimal