1) Efetue:
a) (2/3) − (+3/4) + (+3/8) − (−1/2) + (−5/6)
b) − (1/4−5/8)
c) (3/5−3/4) − (+1/2)
Soluções para a tarefa
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Resposta:
(2/3) − (+3/4) + (+3/8) − (−1/2) + (−5/6) =
-1/ 24 ≅ -0.04166667
- (1/4 - 5/8) = 3 78 = 0.375
(3/5 - 3/4) - (+ 1/2) = -13/ 20 = -0.65
Explicação passo-a-passo:
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