19⼀15-(1⼀6+4⼀15)+1⼀6简便方法是什么?

2024-12-25 18:56:21
推荐回答(1个)
回答1:

19/15-(1/6+4/15)+1/6
=19/15-1/6-4/15+1/6
=(19/15-4/15)+(1/6-1/6)
=1+0
=1