Ответ:9
(7 5/12-3 1/6)*2 2/17=9
1)7 5/12-3 1/6=(НОК=12)(7-3)+(5/12-1/6*2=2/12)=4 3/12
2)4 3/12*2 2/17=9
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Ответ:9
(7 5/12-3 1/6)*2 2/17=9
1)7 5/12-3 1/6=(НОК=12)(7-3)+(5/12-1/6*2=2/12)=4 3/12
2)4 3/12*2 2/17=9