Question

(12 5/11+y)-9 6/11 =7 7/13
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Answer 1

Ответ:

(12 5/11+y)-9 6/11 = 7 7/13

y=7 7/13-(12 5/11 - 9 6/11)

y=7 7/13-2 10/11

y=7 77/143-2 130/143

y=4 90/143