5/3-2/7-1/7
=5/3-ï¼2/7+1/7ï¼
=5/3-3/7
=35/21-9/21
=26/21
=1å21åä¹5追ç
=5/3-ï¼2/7+1/7ï¼
=5/3-3/7
=35/21-9/21
=26/21
=1å21åä¹5追ç
åè¿å»äºï¼é纳å§
温馨提示：内容为网友见解，仅供参考
第1个回答 2017-05-11
解5/3-2/7-1/7
=5/3-(2/7+1/7)
=5/3-3/7
=35/21-9/21
=26/21
=5/3-(2/7+1/7)
=5/3-3/7
=35/21-9/21
=26/21
第2个回答 2017-05-11
如图
第3个回答 2017-05-11
二十一分之二十六
1smart~qing`春
1smart~qing`春
相似回答
