Question

aflati media aritmetica a urmatoarelor grupe de numere
a)0,(3) 1 supra 5 0,7 1 intreg 1 supra 2
si
b)3 supra 4 0,(2) 0,1(6) 2 intregi 1 supra 3 urgentttttttttttttttt

Answer 1

a)
0,(3)=3/9=1/3
1/5
0,7=7/10
1 1/2=3/2
(1/3+ 1/5+7/10+3/2)/4=[(10+6+21+45)/30]/4=82/120=41/60=0,68(3)

b)
3/4
0,(2)=2/9
0,1(6)=(16-1)/90=15/90=1/6
2 1/3 =5/3
(3/4+2/9+1/6+5/3)/4=[(27+8+6+60)/36]/4=101/144=0,7013(8)