www.wfdy.net > 0.125×1/9+1/9×7/8,怎么做?发图片.

0.125×1/9+1/9×7/8,怎么做?发图片.

7/9×0.125+1/9÷8 =1/9【(7X1/8)+1X1/8】 =1/9 X1/8 X(7+1) =1/9 X 1/8 X8 =1/9

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7/8-1/4+9/4 =7/8+(9/4-1/4) =7/8+2 =2又7/8

原式=(1/7-1/8)+(1/8-1/9)+(1/9-1/10)+……+(1/2011-1/2012) =1/7-1/2012 =2005/14084 如果你认可我的回答,敬请及时采纳,回到你的提问页,点击我的回答,然后右上角点击“评价”,然后就可以选择“满意,问题已经完美解决”了。 我是百度知道专家,...

9.5×8/1+2/1×0.125 =(9.5+2/1)×8/1 =10×8/1 =1.25

=1/7-1/8+1/8-1/9+1/9-1/10……+1/100-1/101 =1/7-1/101 =94/707

1/5×1/6=1/5-1/6, 1/6×1/7=1/6-1/7, 1/7×1/8=1/7-1/8, 1/8×1/9=1/8-1/9 1/9×1/10=1/9-1/10 1/5×1/6+1/6×1/7+1/7×1/8+1/8×1/9+1/9×1/10 =1/5-1/6+1/6-1/7+1/7-1/8+1/8-1/9+1/9-1/10 =1/5-1/10 =2/10-1/10 =1/10 类似的题有: 写出以下式子的...

125又9/1除以0.125 解答 125又9/1除以0.125 =(125+1/9)×8 =1000+8/9 =1000又8/9

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