简便计算(1⼀3-1⼀4)+(1⼀4-1⼀5)+1⼀5)+(1⼀5-1⼀6)

2025-01-02 12:23:31
推荐回答(1个)
回答1:

原式=1/3-1/4+1/4-1/5+1/5-1/6
=1/3-(1/4-1/4)-(1/5-1/5)-1/6
=1/3-1/6
=1/6