1/6 is greater than 4/6 because for example, if theres a pizza and theres only 6 pieces 1/6 would mean that you only ate one piece of it and 4/6 would mean that you ate 4 pieces. So, depends on the question. if its asking you if the the more it ate the greater then 4/6 would be greater but if its asking you the least it ate the greater then 1/6 is the answer, but it really depends on the question.