ELOCARDSANTOSGO ELOCARDSANTOSGO Matemática Respondido 04 – Efetue as operações: a) 2/3 + 5/7 = b) 1/2 - 5/2 = c) 3/4 * 1/4 = d) 1/3 – 1/5 = e) 2/3 * 7/5 = f) 1/5 : 2/4 = g) 3/4 : 2/4 = ME AJUDEM PLS