39148/149+14886/149+48*74/149jianbian jianbian

分类: 作业答案 • 2021-12-19 12:04:09

问题描述：

39*148/149+148*86/149+48*74/149
jianbian jianbian

答

39*148/149+148*86/149+48*74/149
=39*148/149+148*86/149+24*148/149
=148/149*(39+86+24)
=148/149*149
=148

答

答案应该为（39*148+148*86+48*74）/149=148

答

39*148/149+148*86/149+48*74/149
=39*148/149+86*148/149+24*148/149
=148/149*（39+86+24）
=148/149*149
=148

39*148/149+148*86/149+48*74/149jianbian jianbian