问题标题:
一道数学简算(987+4097×986)÷(987×4097-3110)怎么简算?
问题描述:

一道数学简算

(987+4097×986)÷(987×4097-3110)

怎么简算?

孙旭回答:
  (987+4097×986)÷(987×4097-3110)   =(987+4097×986)÷[(986+1)×4097-3110]   =(987+4097×986)÷[986×4097+1×4097-3110]   =(987+4097×986)÷[976×4097+987]   =1
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