21/9 to a mixed number

The fraction 21/9 as a mixed number is 2 1/3

Divide the numerator (21) by the denominator (9): the quotient 2 is the whole part and the remainder 3 is the numerator of the fractional part, over the same denominator. Reduced to lowest terms that gives 2 1/3.

Multiply the whole part by the denominator and add the remainder back: 2 × 9 = 18, and 18 + 3 = 21 — exactly the numerator you started with.

21 ÷ 9 ≈ 2.333.