85/2 to a mixed number

The fraction 85/2 as a mixed number is 42 1/2

Divide the numerator (85) by the denominator (2): the quotient 42 is the whole part and the remainder 1 is the numerator of the fractional part, over the same denominator. Reduced to lowest terms that gives 42 1/2.

Multiply the whole part by the denominator and add the remainder back: 42 × 2 = 84, and 84 + 1 = 85 — exactly the numerator you started with.

85 ÷ 2 = 42.5.