39*(148/149)+148*(74/149)=?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/07 13:19:10
![39*(148/149)+148*(74/149)=?](/uploads/image/z/621826-34-6.jpg?t=39%2A%28148%2F149%29%2B148%2A%2874%2F149%29%3D%3F)
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39*(148/149)+148*(74/149)=?
39*(148/149)+148*(74/149)=?
39*(148/149)+148*(74/149)=?
原式=39*(148/149)+74*(148/149)=113*(148/149)=113-113/149=16724/149
即112又36/149