Ответ:
Пошаговое объяснение:
1) -2/9+(2/9)-(3/4)=-3/4
2)4/7- 5/11 + 3/7=7/7= 5/11= 1 - 5\11= 11/11 - 5/11= 6/11\3) 3 5/6 - 5/6 - 1/7=3 -1/7= 2 7/7-1/7=2 6/7
4) 3/8-1/9+5/8=1 - 1/9= 9/9- 1/9= 8/9
5)(2 3/4- 1 1/4) - 5 1/2=1 2/4 - 5 1/2=1 1/2 - 5 1/2=-4
6) 6 5/8- 1 3/4 + 2 3/8=8 - 1 3/4=6 1/4
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Ответ:
Пошаговое объяснение:
1) -2/9+(2/9)-(3/4)=-3/4
2)4/7- 5/11 + 3/7=7/7= 5/11= 1 - 5\11= 11/11 - 5/11= 6/11\3) 3 5/6 - 5/6 - 1/7=3 -1/7= 2 7/7-1/7=2 6/7
4) 3/8-1/9+5/8=1 - 1/9= 9/9- 1/9= 8/9
5)(2 3/4- 1 1/4) - 5 1/2=1 2/4 - 5 1/2=1 1/2 - 5 1/2=-4
6) 6 5/8- 1 3/4 + 2 3/8=8 - 1 3/4=6 1/4