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5/4x9/7x8/5怎样简便列式计算?
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5/4x9/7x8/5怎样简便列式计算?
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答案和解析
5/4x9/7x8/5
=5/4x8/5x9/7
=2x9/7
=18/7
=5/4x8/5x9/7
=2x9/7
=18/7
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