23⼀15-7⼀18-1⼀8+8⼀15怎样简便计算

2025-02-25 19:33:20
推荐回答(2个)
回答1:


回答2:

23/15-7/18-1/8+8/15
=(23/15+8/15)-(7/18+1/8)
=31/15-37/72
=559/360