2 2/3 : 9 =1 7/9: и
1 7/9: и=2 2/3: 9
1 7/9: и= 8/27
и= 1 7/9 : 8/27
и=6
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2 2/3 : 9 =1 7/9: и
1 7/9: и=2 2/3: 9
1 7/9: и= 8/27
и= 1 7/9 : 8/27
и=6