Resposta:
5/3 + 7/3 = 12/3
4/5 - 1 /5 + 2/5= 5/5
1/6 + 3/6 - 7/6= -3/6
-1/9 - 3/9 - 5/9= -9/9
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Resposta:
5/3 + 7/3 = 12/3
4/5 - 1 /5 + 2/5= 5/5
1/6 + 3/6 - 7/6= -3/6
-1/9 - 3/9 - 5/9= -9/9