The mixed number 85 21/10 written as an improper fraction is 871/10
To turn the mixed number 85 21/10 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 85 × 10 = 850.
After that, add the result to the numerator of the fractional part: 850 + 21 = 871.
Next, Write the sum of the previous step on the original denominator: 871/10.
This means that 85 21/10, as an improper fraction, equals 871/10.
See also: 85 21/10 as a decimal