题目

[47-(18.75-1/8/15)*2又6/25]/0.46
过程详细点.

提问时间：2020-07-25

答案

[47-(18.75-1÷15/8)×2又25/6]÷0.46
=[47-(75/4-15/8)×56/25]x50/23
=[47-(75/4×56/25-15/8x56/25)]x50/23
=[47-42+21/5]x50/23
=46/5x50/23
=20