The mixed number 115 21/10 written as an improper fraction is 1171/10
To turn the mixed number 115 21/10 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 115 × 10 = 1150.
After that, add the result to the numerator of the fractional part: 1150 + 21 = 1171.
Next, Write the sum of the previous step on the original denominator: 1171/10.
This means that 115 21/10, as an improper fraction, equals 1171/10.
See also: 115 21/10 as a decimal