Farud is not correct in his claim that he had more M&Ms than Jackson.
Although Farud had 4 whole bags of M&Ms left, he only had ⅓ of a bag left.
Jackson had ¹³⁄₃ bags left, which is equivalent to 4 whole bags and ⅓ of a bag.
Therefore, Jackson had the same amount of whole bags as Farud, but he also had an additional ⅓ of a bag.