Explicație pas cu pas:
[tex] \frac{x}{4} = \frac{1 }{2} + 2 \frac{1}{5} \\ \frac{x}{4} = \frac{1 }{2} + \frac{11}{5} \\ \frac{x}{4} = \frac{5 + 22}{10} \\ \frac{x}{4} = \frac{27}{10} \\ x = \frac{27 \times 4}{10} = \frac{108}{10} = \frac{54}{5} [/tex]
[tex] \frac{x}{2} = 4 \frac{5}{6} - 0.(3) \\ \frac{x}{2} = \frac{29}{6} - \frac{30}{90} \\ \frac{x}{2} = \frac{29}{6} - \frac{1}{3} \\ \frac{x}{2} = \frac{29 - 2}{6} \\ \frac{x}{2} = \frac{27}{6} \\ \frac{x}{2} = \frac{9}{2} \\ x = 9[/tex]
