Ответ:
1) 3 1/18-1/9=3 1/18-2/18=2 17/18
2) 3 17/27-2 13/18=3 68/108-2 78/108=98/108=49/54
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Ответ:
1) 3 1/18-1/9=3 1/18-2/18=2 17/18
2) 3 17/27-2 13/18=3 68/108-2 78/108=98/108=49/54