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