Răspunsuri

2014-02-03T16:45:48+02:00
5/3-3/7=35/21-9/21=26/21
1/3+3/7=7/21+9/21=16/21
a+b=26/21+16/21=42/21=2
(a+b)/2=2/2=1
1 5 1
2014-02-03T16:46:12+02:00
Media aritmetica = a + b / 2
a+b =  5/ 3 - 3/7 + 1/3 + 3/7 = 5/3 + 1/3 = 6/3 = 2 (-3/7 + 3+7 = 0)
m.a. = 2/2 = 1
a + b / 2
a+b = 5/ 3 - 3/7 + 1/3 + 3/7 = 5/3 + 1/3 = 6/3 = 2 (-3/7 + 3+7 = 0)
m.a. = 2/2 = 1 sper ca te-am ajutat!Bafta...