(987+4097×986)÷(987×4097-3110)
问题描述:
(987+4097×986)÷(987×4097-3110)
答
因为4097-3110=987,
所以原式可变为:
(4097-3110+4097×986)÷(987×4097-3110)
=[(4097×(986+1)-3110]÷(987×4097-3110)
=(4097×986-3110)÷(987×4097-3110)
=1(4097×986-3110)÷(987×4097-3110)这个结果好像不等于1。哈哈哈,对不起,粗心了,986+1都算错了。谢谢你指出我的错误!!!
倒数第二步4097×986-3110这里应该是4097×987-3110