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11 punctul b urgentttt
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11 Punctul B Urgentttt class=

Răspuns :

3,4=34/10=17/5
2,(6)=(26-2)/9=24/9=8/3
0,2(7)=(27-2)/90=25/90=5/18

[5x(17/5)+6x(8/3)+18x(5/18)]/(5+6+18)=(17+16+5)/29=38/29