It is not possible to answer the question with no information of the weight of a single object.
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If you mean: 11/8 then it is 1 and 3/8 as a mixed number or 1.375 as a decimal
35/8 = 43/8
Eleven cannot be squared, unless by a mixed number, because nothing times four equals eleven.
11/3 = 3 and 2/3 as a mixed number
As a mixed number it is: 11 and 63/100 (eleven and sixty-three over one hundred).