Verdadero: 8/9 - 2/4= 14/36, 1/2 × 4/5= 4/10, 5 ÷ 2/3= 15/2, 3/9+4/6=54/54, Falso: 8/9 - 2/4 =16/34 , 1/2×4/5=4/5, 5×2/3=10/4, 3/9+4/6=5/4,

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