Ответ:
Пошаговое объяснение:
7/9+5/6= (14+15)/18=29/18=1 11/18;
2/3+4/9=(6+4)/9 =10/9=1 1/9;
11/18-1/12= (22-3)/36 = 19/36;
4/5+2/7= (28+10)/35 = 38/35= 1 3/35;
12/13-1/2= (24-13)/26 = 11/26.
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Ответ:
Пошаговое объяснение:
7/9+5/6= (14+15)/18=29/18=1 11/18;
2/3+4/9=(6+4)/9 =10/9=1 1/9;
11/18-1/12= (22-3)/36 = 19/36;
4/5+2/7= (28+10)/35 = 38/35= 1 3/35;
12/13-1/2= (24-13)/26 = 11/26.