4⼀5-(1⼀8+1⼀4)等于多少在线等急!!!

2025-01-02 00:58:24
推荐回答(2个)
回答1:

4/5一(1/8十1/4)=4/5一3/8=32/40一15/40=17/40

回答2:

4/5-(1/8+1/4)
=4/5-(1/8+2/8)
=4/5-3/8
=32/40-15/40
=17/40