You would have 2/3 left so 2/3 ÷ 6 and that would turn into 2/3 × 6/1 and that would turn into 2/3 × 1/6 which would equal 2/18 which would simplify 1/9
You recognize that, of the numbers in Y, 20 is not a square. You also recognize that the remaining values of Y correspond to the squares of the values of X: