resolva a expressao (3/2 - 2/5) + (5/4 - 2/3) 1+ (1/2 - 1/5) - (7/4 - 5/4)
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(3/2 - 2/5) + (5/4 - 2/3) 1 + (1/2 - 1/5) - (7/4 - 5/4)
11/10 + (5/4 - 2/3) 1 + (1/2 - 1/5) - (7/4 - 5/4)
11/10 + (7/12) 1 + (1/2 - 1/5) - (7/4 - 5/4)
11/10 + (7/12) + (1/2 - 1/5) - (7/4 - 5/4)
101/60 + (1/2 - 1/5) - (7/4 - 5/4)
101/60 + 3/10 - (7/4 - 5/4)
119/60 - (7/4 - 5/4)
119/60 - 1/2
89/60 <------
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