verdadero: 2/3 x 1/3 = 2/9 , 6/5 x 1/3 = 2/5, 7/12 x 1/2 = 7/24 , 1/6 x16 = 8/3 , 11 x 3/55 = 3/5, 5/7 + 1/7 = 6/7, 1/2 + 2/5 = 9/10 , 1/12 + 7/15 = 33/60, 16/32 = 1/2, 25/35 = 5/7, 2/4 = 1/2, 14/19 - 4/19 = 10/19, 2/5 - 4/15 = 2/15, 1/2 - 1/4 = 1/4, 1/2 ÷ 2/4 = 1/4, Falso: 1/2 x 9/8= 2/8, 6/46x 9/7 = 2/10, 3/10 x 1/12 = 7/28, 2/6 x46 = 8/4, 354 x 9/6 = 5/3, 5/6 + 1/6 = 6/7, 12/89 + 4/8 = 345/47, 2/3 + 1/3 = 2/8 , 25/10 = 2/3 , 8/12 = 2/4, 5/25 = 1/27, 16/34 -3/5 = 3/7, 2/8 - 2/8 = 5/6, 9/8 - 8/7 = 3/5, 23/54 ÷ 3/6 = 25/89,

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