2÷[(1/27-1/36)×9]×6
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发布时间:2024-10-08 18:35
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热心网友
时间:2024-10-25 03:35
2÷[(1/27-1/36)×9]×6
=2÷[(1/3×1/9-1/4×1/9)×9]×6
=2÷[(1/3-1/4)×1/9×9]×6
=2÷[1/12×1/9×9]×6
=2÷1/12×6
=2÷1/6
=12 分母不一样的要通分
热心网友
时间:2024-10-25 03:36
2÷[(1/27-1/36)×9]×6
=2÷[(1/3×1/9-1/4×1/9)×9]×6
=2÷[(1/3-1/4)×1/9×9]×6
=2÷[1/12×1/9×9]×6
=2÷1/12×6
=2÷1/6
=12