найдите неизвестный член отношения:1)x:11 3/7=1 1/10 2)x:7 5/9=27/34 3)x:4 3/4=2 3/19 4)9 2/7:x=1 6/7 5)10 2/13:x=1 7/26 6)12 1/7:x=2 3/7​
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