3/(3*4)/(4*5)/(5*6)/(6*7)/(7*8)/(8*9)
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/09 06:41:56
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3/(3*4)/(4*5)/(5*6)/(6*7)/(7*8)/(8*9)
3/(3*4)/(4*5)/(5*6)/(6*7)/(7*8)/(8*9)
3/(3*4)/(4*5)/(5*6)/(6*7)/(7*8)/(8*9)
是3÷(3*4)÷(4*5)÷(5*6)÷(6*7)÷(7*8)÷(8*9) 吗
分子或者分母加上综括号,否则不知道哪个是分子那个是分母啊
算一下就好了啦