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CUM REZOLV EXERCITIUL?CALCULATI MEDIA ARITMETICA A NR;7(6)
;0((7) SI 81(5).CUM SE REZOLVA?



Răspuns :

7,(6)= 7 intregi 6/9 = 69/9 = 23/3
0,(7)=7/9
81,(5)= 81 intregi 5/9 = 734/9

[tex] \frac{ \frac{23}{3} + \frac{7}{9} + \frac{734}{9} }{3} = \frac{ \frac{69+7+734}{9} }{3} = \frac{810}{9} :3=90:3=30[/tex]