计算[8/7-(15/4+12/7)]*16/5
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计算[8/7-(15/4+12/7)]*16/5计算[8/7-(15/4+12/7)]*16/5计算[8/7-(15/4+12/7)]*16/5[8/7-(15/4+12/7)]×16/5[8\7-1
计算[8/7-(15/4+12/7)]*16/5
计算[8/7-(15/4+12/7)]*16/5
计算[8/7-(15/4+12/7)]*16/5
[8/7-(15/4+12/7)]×16/5
[8\7-15/4-12/7]×16/5
=-[20/7+15/4]×16/5
=-64/7-12
=-21又1/7
-484/35