The mixed number 105 1/4 written as an improper fraction is 421/4
To turn the mixed number 105 1/4 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 105 × 4 = 420.
After that, add the result to the numerator of the fractional part: 420 + 1 = 421.
Next, Write the sum of the previous step on the original denominator: 421/4.
This means that 105 1/4, as an improper fraction, equals 421/4.
See also: 105 1/4 as a decimal