Ответ:
11_7/9+y=13_1/18
106/9+y=235/18
y=235/18-106/9
y=(235-212)/18=23/18=1_5/18
24/35:y=1_5/49
24/35*1/y=54/49
24/35y=54/49
1890y=1176
y=1176/1890=28/45
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Ответ:
11_7/9+y=13_1/18
106/9+y=235/18
y=235/18-106/9
y=(235-212)/18=23/18=1_5/18
24/35:y=1_5/49
24/35*1/y=54/49
24/35y=54/49
1890y=1176
y=1176/1890=28/45