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va rog mult !!dau coroana!!​

Va Rog Mult Dau Coroana class=

Răspuns :

0,5=5/10= 1/2

0,(3)= 3/9=1/3

2/3 × 1/2 +1/3×5= 2/6 +5/15 = 1/3+1/3=2/3