十一分之八加九分之二加十三分之十一加九分之四的简便计算？
2个回答
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8/11+2/9+11/13+4/9
=8/11+2/9+4/9+11/13
=8/11+2/3+11/13
=24/33+22/33+11/13
=46/33+11/13
=598/429+363/429
=961/429
=8/11+2/9+4/9+11/13
=8/11+2/3+11/13
=24/33+22/33+11/13
=46/33+11/13
=598/429+363/429
=961/429
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简便计算：
8/11+2/9+11/13+4/9
=8/11+（2/9+4/9）+11/13
=8/11+2/3+11/13
=24/33+22/33+11/13
=46/33+11/13
=598/429+363/429
=961/429
8/11+2/9+11/13+4/9
=8/11+（2/9+4/9）+11/13
=8/11+2/3+11/13
=24/33+22/33+11/13
=46/33+11/13
=598/429+363/429
=961/429
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