Question

Calculati media aritmetica a numerelor:
$12\frac{2}{5}$ si $17\frac{3}{5}$

Answer 1

[tex]12\frac{2}{5}=\frac{60+2}{5}=\frac{62}{5}\\ 17\frac{3}{5}=\frac{85+3}{5}=\frac{88}{5}\\ m_a=\frac{\frac{62}{5}+\frac{88}{5}}{2}=\\ =\frac{\frac{150}{5}}{2}=\\ =\frac{30}{2}=15[/tex]