=1/2(1/2-1/4+1/3-1/5+1/4-1/6+1/5-1/7+1/6-1/8+1/7-1/9+1/8-1/10+1/9-1/11+1/10-1/12+1/11-1/13)=1/2(1/2+1/3-1/12-1/13)=35/104
1/8+1/15+1/24+1/35+1/48+1/63+1/80+1/99+1/120+1/143=?
2个回答
相关问题
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1/3+1/8+1/15+1/24+1/35+1/48+1/63+1/80+1/99怎么求
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1/3+1/15+1/35+1/63+1/99+1/143
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30*(1/15+1/35+1/63+1/99+1/143+1/195)=
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3/1+15/1+35/1+63/1+99/1+143/1简算
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计算题：1/3+1/15+1/35+1/63+1/99+1/143
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1/3＋1/15＋1/35＋1/63＋1/99＋1/143＋1/195＋1/255 =
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简算：3/1+15/1+35/1+63/1+99/1+143/1+195/1=?
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1/3 + 1/15 + 1/35 + 1/63 + 1/99 + 1/143 + 1/195 + 1/255 (A)A
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五年级数学分数计算题1/15+1/35+1/63+1/99+1/143
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1/3+1/15+1/35+1/63+1/99+1/143的简便算法（写过程）