Calculati suma aritmetica a numerelor: 39 si 13 , 72 81 si 102

Răspuns :

39+13/2=52/2=6
72+82/2=154/2=77
77+102/2=179/2=89
sper ca te am ajutat
[tex] \frac{39+13}{2}= \frac{52}{2}=26\\ \frac{72+81+102}{3}= \frac{255}{3}=85 [/tex]