5/12-1/6-5/6+7/12
=(5/12+7/12)-(1/6+5/6)
=1-1
=0
有不明白的可以追问!谢谢!!
祝学习进步!
你好!
5/12-1/6-5/6+7/12
=(5/12+7/12)-(1/6+5/6)
=1-1
=0
【祝你学习更上一层楼!】
5/12-1/6-5/6+7/12
=(5/12+7/12)-(1/6+5/6)
=1-1
=0
这是带符号搬家和去添括号的应用。
【祝你学习进步!】
5/12 - 1/6 - 5/6 + 7/12
= (5/12 + 7/12) - (1/6 + 5/6)
= 1 - 1
= 0