1+1又1/3+1又2/3+2+2又1/3+2又2/3+3+3又1/3+3又2/3+4+4又1/3+.+29怎么简算?
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/02 00:05:20
![1+1又1/3+1又2/3+2+2又1/3+2又2/3+3+3又1/3+3又2/3+4+4又1/3+.+29怎么简算?](/uploads/image/z/250427-11-7.jpg?t=1%2B1%E5%8F%881%2F3%2B1%E5%8F%882%2F3%2B2%2B2%E5%8F%881%2F3%2B2%E5%8F%882%2F3%2B3%2B3%E5%8F%881%2F3%2B3%E5%8F%882%2F3%2B4%2B4%E5%8F%881%2F3%2B.%2B29%E6%80%8E%E4%B9%88%E7%AE%80%E7%AE%97%3F)
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1+1又1/3+1又2/3+2+2又1/3+2又2/3+3+3又1/3+3又2/3+4+4又1/3+.+29怎么简算?
1+1又1/3+1又2/3+2+2又1/3+2又2/3+3+3又1/3+3又2/3+4+4又1/3+.+29怎么简算?
1+1又1/3+1又2/3+2+2又1/3+2又2/3+3+3又1/3+3又2/3+4+4又1/3+.+29怎么简算?
把这八十五个数倒过来,与原算式对应相加(变为八十五个三十),得出要求的数的两倍,所以原式=85*30/2=12525