5×(15⼀4+12⼀1)-12⼀5的简便计算

5×(15/4+12/1)-12/5的简便计算
2025-04-26 01:43:09
推荐回答(1个)
回答1:

5x(4/15+1/12)-5/12
=5x4/15+5x1/12-5/12
=4/3+5/12-5/12
=4/3