Ответ:
4 1/2; 6 4/9
Пошаговое объяснение:
(9/7+9/4):11/14= (36/28+63/28):22/28=99/28:22/28=99/28*28/22=99/22=9/2= 4 1/2
(49/9-23/6)*4= (98/18-69/18)*4= 29/18*4= 58/9= 6 4/9
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Ответ:
4 1/2; 6 4/9
Пошаговое объяснение:
(9/7+9/4):11/14= (36/28+63/28):22/28=99/28:22/28=99/28*28/22=99/22=9/2= 4 1/2
(49/9-23/6)*4= (98/18-69/18)*4= 29/18*4= 58/9= 6 4/9