Ответ:
5/6;-10/63;6/35;22/39
Пошаговое объяснение:
1/2+1/3=3/6+2/6=5/6
2/7-4/9=18/63-38/63=-10/63
3/7×2/5=3×2/7×5=6/35
11/13:3/2=11/14:2/3=22/39
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Answers & Comments
Ответ:
5/6;-10/63;6/35;22/39
Пошаговое объяснение:
1/2+1/3=3/6+2/6=5/6
2/7-4/9=18/63-38/63=-10/63
3/7×2/5=3×2/7×5=6/35
11/13:3/2=11/14:2/3=22/39