5/8*69又10/17+1/8*50+7/8*5/17
来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/24 23:07:15
5/8*69又10/17+1/8*50+7/8*5/175/8*69又10/17+1/8*50+7/8*5/175/8*69又10/17+1/8*50+7/8*5/17原式=[5*(69*17+10)
5/8*69又10/17+1/8*50+7/8*5/17
5/8*69又10/17+1/8*50+7/8*5/17
5/8*69又10/17+1/8*50+7/8*5/17
原式=[5*(69*17+10)+1*50*17+7*5]/(8*17)=(5915+850+35)/136=6800/136=50