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Calculati raportul
AB=1.(3) dam
CD=2.1(3) dam
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Răspuns :

Mikkka
AB= (13-1)/9=12/9=4/3 dam
CD=(213-21)/90 = 192/90=64/30=32/15 dam
AB/CD=4/3 : 32/15=4/3 *15/32= 5/8

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