4 pounds is 64 ounces (oz) so 4 pounds is bigger
40 ounces = 2.5 pounds
40 fluid ounces is bigger.
40 pounds = 640 ounces
A pound is 16 ounces. If you work it out, you'll find that 80 ounces is 5 pounds, which is less than 8 pounds.
2.5 pounds = 40 ounces
40 ounces = 2.5 pounds
40 ounces is 2.5 pounds.
25 pounds is 400 ounces.
There are 16 ounces in one pound. Therefore, 40 ounces is equal to 40 / 16 = 2.5 pounds.
40 ounces is much bigger.
40 ounces = 2.5 pounds