At a loading dock, each worker on the night crew loaded $$\frac{3}{4}$$ as many boxes as each worker on the day crew. If the night crew has $$\frac{4}{5}$$ as many workers as the day crew, what fraction of all the boxes loaded by the two crews did the day crew load?
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A$$\frac{1}{2}$$
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B$$\frac{2}{5}$$
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C$$\frac{3}{5}$$
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D$$\frac{4}{5}$$
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E$$\frac{5}{8}$$