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13问答网 > 17⼀9+1⼀8+3⼀8-5⼀7简便计算怎么算？

17⼀9+1⼀8+3⼀8-5⼀7简便计算怎么算？

这道题怎么做

2025-03-15 21:53:19

推荐回答（2个）

回答1：

结果等于 391/126

如果满意请采纳谢谢！！！！！！

回答2：

17/9+1/8+3/8-5/7
=17/9+（1/8+3/8）-5/7
=17/9+1/2-5/7
=238/126+63/126-90/126
=211/126

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