The mixed number 85 70/80 written as an improper fraction is 6870/80
To turn the mixed number 85 70/80 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 85 × 80 = 6800.
After that, add the result to the numerator of the fractional part: 6800 + 70 = 6870.
Next, Write the sum of the previous step on the original denominator: 6870/80.
This means that 85 70/80, as an improper fraction, equals 6870/80.
See also: 85 70/80 as a decimal