2⼀3-括号4⼀7-1⼀6括号简便运算

2/3-括号4/7-1/6括号简便运算
2025-04-07 17:25:10
推荐回答(1个)
回答1:

2/3-(4/7-1/6)
=2/3-4/7+1/6
=2/3+1/6-4/7
=5/6-4/7
=11/42