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me ajudem, plsss :)....​

Me Ajudem Plsss class=

Resposta :

(3/7)×700= (3/1)×100= 300

(3/4)×120= (3/1)×30= 90

(5/8)×800= (5/1)×100= 500

(1/10)×2000= 200

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