Two fractions can be compared using informal, mental arguments rather than common denominators, models, or other algorithms. For the pair of fractions below, which is the larger fractions and which justification makes the most sense? 4/5 or 8/9? Group of answer choices a) 8/9 because the 9 in 8/9 is larger than the 5 in 4/5 b) 4/5 because 4/5 has larger parts than 8/9 c) 8/9 because the 8 in 8/9 is larger than the 4 in 4/5 d) 8/9 because it is 1/9 away from the whole and 4/5 is 1/5 away from the whole and 1/9 is less than 1/5, so 8/9 is closer to the whole