1. 7/9+5/6-27/12 2. выполнете действия 28/33*45/98: 2 3/11
1. 7/9+5/6-27/12 = 29/18-27/12= -23/26
2. 28/33*45/98:23/11=30/77:23/11= 30/161
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1. 7/9+5/6-27/12 = 29/18-27/12= -23/26
2. 28/33*45/98:23/11=30/77:23/11= 30/161