Question

Media aritmetica a numerelor a = 1/3 + 1/2 si b = 5/3 - 1/2 , este...

Answer 1

a=2/6+3/6⇒a=5/6;
b=10/6-3/6⇒b=7/6;
⇒ma=[a+b]/2;
⇒ma=[5/6+7/6]/2=[12/6]/2=2/2=1⇒media aritmetica a numerelor a si b;

Answer 2

$a= \frac{1}{3} + \frac{1}{2} \\ b= \frac{5}{3} - \frac{1}{2} \\ m_a= \frac{a+b}{2} = \frac{ \frac{1}{3} + \frac{1}{2} + \frac{5}{3} - \frac{1}{2} }{2} = \frac{ \frac{2}{6} + \frac{3}{6} + \frac{10}{6} - \frac{3}{6} }{2} = \frac{ \frac{12}{6} }{2} = \frac{2}{2} =1$