Explicație pas cu pas:
a)
[tex]\frac{162}{192} = \frac{2 \times {3}^{4} }{ {2}^{6} \times 3} = \frac{ {3}^{3} }{ {2}^{5} } = \frac{27}{32} [/tex]
b)
[tex]\frac{ {2}^{8} + {2}^{9} }{96} = \frac{ {2}^{8}(1 + 2)}{ {2}^{5} \times 3} = \frac{ {2}^{8} \times 3}{ {2}^{5} \times 3} = {2}^{3} = 8[/tex]
c)
[tex]\frac{\overline {2a} + \overline {a2}}{121} = \frac{20 + a + 10a + 2}{121} = \frac{11a + 22}{ {11}^{2} } = \frac{11(a + 2)}{ {11}^{2} } = \frac{a + 2}{11} [/tex]
