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Poster size
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16 in by 20 in
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After reduced
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16 in x 3/4 by 20 in x 3/4
= 12 in by 15 in
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Frame
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11 in by 7 ft
= 11 in by 7 x 12 in
= 11 in by 84 in
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Conclusion
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Reduced Poster = 12 in x 15 in
Frame Size = 11in by 84 in
No, it will not fit because the poster is wider than the frame.
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Answer : No
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