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  • Usuário do Brainly
2014-07-04T11:47:16-03:00
(3/10+7/30)÷(5-7/15+4/3-24/9)
(9/30+7/30)÷(18/135+180/135-360/135)
16/30÷(18/135-180)
16/30÷198/135=
2160/5940
Espero te ajudado vc .
:)))

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