nikki-allen_60aa41e212506
nikki-allen_60aa41e212506
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(2 + 3/4) * (3 - 1/5)= (2*4/4 + 3/4) * (3*5/5-1/5)= (8/4+3/4) * (15/5-1/5)= 11/4 * 14/5 = 154 / 20 (simplificando por 2 fica) = 77 /10 Opção c)... Ok?...