3.875*1/5+38 3/4*0.09-0.155*12.5
答案:1 悬赏:70 手机版
解决时间 2021-03-28 07:17
- 提问者网友:泪痣哥哥
- 2021-03-27 20:57
3.875*1/5+38 3/4*0.09-0.155*12.5
最佳答案
- 五星知识达人网友:深街酒徒
- 2021-03-27 21:22
3.875*1/5+38又 3/4*0.09-0.155*12.5
=3.875*1/5+3.875*0.9-15.5*0.125
=3.875*(1/5+0.9)-31/2*1/8
=3.875*1.1-31/16
=31/8*1.1-31/16
=31/16*(2.2-1)
=31/16*1.2
=23.25
=3.875*1/5+3.875*0.9-15.5*0.125
=3.875*(1/5+0.9)-31/2*1/8
=3.875*1.1-31/16
=31/8*1.1-31/16
=31/16*(2.2-1)
=31/16*1.2
=23.25
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