一道数学简算(987+4097×986)÷(987×4097-3110)怎么简算?
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![一道数学简算(987+4097×986)÷(987×4097-3110)怎么简算?](/uploads/image/z/130783-31-3.jpg?t=%E4%B8%80%E9%81%93%E6%95%B0%E5%AD%A6%E7%AE%80%E7%AE%97%EF%BC%88987%2B4097%C3%97986%EF%BC%89%C3%B7%EF%BC%88987%C3%974097-3110%EF%BC%89%E6%80%8E%E4%B9%88%E7%AE%80%E7%AE%97%3F)
一道数学简算(987+4097×986)÷(987×4097-3110)怎么简算?
一道数学简算
(987+4097×986)÷(987×4097-3110)
怎么简算?
一道数学简算(987+4097×986)÷(987×4097-3110)怎么简算?
(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
(987+4097×986)÷(987×4097-3110)
=(987+4097×986)÷(986×4097+4097-3110)
=(987+4097×986)÷(986×4097+987)
=1
(4097-3110+4097*986)÷(987*4097-3110)
=(4097*987-3110)÷(987*4097-3110)
=1