8⼀13+15⼀17+18⼀13+2⼀17

2025-04-28 23:10:44
推荐回答(1个)
回答1:

8/13+15/17+18/13+2/17
=(8/13+18/13)+(15/17+2/17)
=26/13+17/17
=2+1
=3