如题所述
11/40+2/3-1/3+39/40
=(11/40+39/40)+(2/3-1/3)
=5/4+1/3
=15/12+4/12
=19/12
=1å7/12
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=(11/40+39/40)+(2/3-1/3)
=5/4+1/3
=15/12+4/12
=19/12
=1å7/12
è¡å®¶æ£è§£ï¼ä¸æç½å¯ä»¥è¿½é®ï¼ç¥æ¨å¦ä¹ è¿æ¥
满æ请ç¹å»ä¸é¢çãé为满æåçãæé®ï¼O(â©_â©)O谢谢
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第1个回答 2016-07-04
11/40-2/3-1/3+39/40怎样计算
11/40-2/3-1/3+39/40
=11/40-39/40-(2/3+1/3)
=1又1/4-1
=1/4
11/40-2/3-1/3+39/40
=11/40-39/40-(2/3+1/3)
=1又1/4-1
=1/4
第2个回答 2016-07-04
11/40+2/3-1/3+39/40
=11/40+39/40+(2/3-1/3)
=5/4+1/3
=19/12
=11/40+39/40+(2/3-1/3)
=5/4+1/3
=19/12