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The difference between a positive proper fraction and its reciprocal is 9/20. The fraction is: |
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Answer» 4/5 1/x - x = 9/20 20x2 + 25X - 16x - 20 = 0 5x(4x + 5) -4(4x + 5) = 0 (4x + 5)(5x - 4) = 0 x = 4/5 |
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