3⼀7÷[(2⼀3-1⼀2)x6⼀7]简便运算怎么做?

2024-11-25 14:41:17
推荐回答(1个)
回答1:

3/7÷[(2/3-1/2)x6/7]
= 3/7 ÷ ( 1 /6 x 6/7)
= 3/7 x 7
= 3