九分之七减括号走四分之三减二分之一括号完毕

2025-05-02 10:04:50
推荐回答(2个)
回答1:

9分之7-(4分之3-2分之1)
=9分之7-4分之1
=36分之28-36分之9
=36分之19

回答2:

7/9-(3/4-1/2)
=7/9-1/4
=19/36