30霧(13霧7)等于多少数字怎么换算?

2024-11-20 13:29:04
推荐回答(2个)
回答1:

30÷(13÷7)
=30÷13/7
=30 *7/13
=210/13

回答2:

30➗(13➗7)
=30➗(13×1/7)
=30➗(13/7)
=30×7/13
=210/13