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1:1/5×[1/3÷(1/2+5/6)] 2:1-(1/6×2/5)÷7/9 3:12÷(1-31:1/5×[1/3÷(1/2+5/6)]2:1-(1/6×2/5)÷7/93:12÷(1-3/7)4:4/5×2/3-1/6÷1/25:(1/2+1/3)÷(1-3/8)6:[(1-3/5)×2/3]÷4
1:1/5×[1/3÷(1/2+5/6)] 2:1-(1/6×2/5)÷7/9 3:12÷(1-3
1:1/5×[1/3÷(1/2+5/6)]
2:1-(1/6×2/5)÷7/9
3:12÷(1-3/7)
4:4/5×2/3-1/6÷1/2
5:(1/2+1/3)÷(1-3/8)
6:[(1-3/5)×2/3]÷4
1:1/5×[1/3÷(1/2+5/6)] 2:1-(1/6×2/5)÷7/9 3:12÷(1-31:1/5×[1/3÷(1/2+5/6)]2:1-(1/6×2/5)÷7/93:12÷(1-3/7)4:4/5×2/3-1/6÷1/25:(1/2+1/3)÷(1-3/8)6:[(1-3/5)×2/3]÷4