1.

`(57)/(67)xx(32)/(171)xx(45)/(128)=?`A. `(15)/(262)`B. `(15)/(268)`C. `(15)/(266)`D. `(17)/(268)`

Answer» Correct Answer - B
`?=(57)/(67)xx(32)/(171)xx(45)/(128)=(15)/(268)`


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