6. Найди значение выражения \(\frac{a}{12} + \frac{8}{a}\) при a = 12; a = 8; a = 4.

1) При a = 12: * \(\frac{12}{12} + \frac{8}{12} = 1 + \frac{2}{3} = \frac{3}{3} + \frac{2}{3} = \frac{5}{3}\) 2) При a = 8: * \(\frac{8}{12} + \frac{8}{8} = \frac{2}{3} + 1 = \frac{2}{3} + \frac{3}{3} = \frac{5}{3}\) 3) При a = 4: * \(\frac{4}{12} + \frac{8}{4} = \frac{1}{3} + 2 = \frac{1}{3} + \frac{6}{3} = \frac{7}{3}\) **Ответ:** При a = 12: 5/3 При a = 8: 5/3 При a = 4: 7/3