Step-by-step explanation: 0.571 is greater than 0.4. Therefore, 4/7 is greater than 2/5 and the answer to the question "Is 4/7 greater than 2/5?" is yes. Note: When comparing fractions such as 4/7 and 2/5, you could also convert the fractions (if necessary) so they have the same denominator and then compare which numerator is larger.
9 divided by 72 = 0.125 0.125 is the weight of one book 0.125 times 80 = 10kg. So 80 books weight 10kg. 72 divided by 9 = 8 books make up 1 kg. 8 times 6 =48
