
Fred H. answered 01/11/16
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Retired ivy league engineer math and english tutor
There are 16 ounces in a pound. Therefore, the number of ounces in 7 lb 8 ounces is:
(7 lbs) (16 oz/lb) + 8 oz = 120 oz
The average baby weighs 120 oz
The smallest baby is therefore 120 - 8.6 = 111.4 oz lighter than the average baby