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What should come in place of the question mark (?) in the following question ?
$$\frac{57}{67}\times\frac{32}{171}\times\frac{45}{128}=?$$
The expression, on reframing gives, $$\frac{57}{171}\times\frac{32}{128}\times\frac{45}{67}$$
which on simplifying gives,
(1/4)*(1/3)*(45/67) = (15/268)
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