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a fost răspuns

calculati a) 12supra25: (4supra5 : 9supra35)

Răspuns :

a) 12/25:(4/5:9/35) =
= 12/25*(4/5*35/9) =
= 12/25:(4*7/9) =
= 12/25:28/9 =
= 12/25*9/28 =
= 3/25*9/7 =
= 27/175

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