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media artmetiica 1\3 +12\5 si 2\3+3\5

Răspuns :

Ma = (1\3 + 12\5 + 2\3 + 3\5) : 2
Ma = (3\3 + 15\5) : 2
Ma = (1 + 3) : 2
Ma = 4 : 2
Ma = 2
Ma=a+b+c+d/2
Ma=(1/3+12/5+2/3+3/5) :2
Ma=(1/3+2/3)+(12/5+3/5):2
Ma=(3/3+15/5):2
3/3=1
15/5=3
Ma=(1+3):2
Ma=4:2
Ma=2