来自任姝婕的问题
六年级数学!简便运算~~分数除法~~(2)10除于5/9+1/6X4(要用递等式~~~)===7/9除于11/5+2/9X5/11===(1/12+1/2-7/12)除于1/7===
六年级数学!简便运算~~分数除法~~(2)
10除于5/9+1/6X4(要用递等式~~~)
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7/9除于11/5+2/9X5/11
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(1/12+1/2-7/12)除于1/7
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1回答
2020-05-12 07:17