Explicație pas cu pas:
[tex] \left( \frac{7}{6} + \frac{2}{3} - \frac{5}{12} \right) \times \left( 1 \frac{5}{12} \right)^{ - 1} \\ = \left( \frac{14}{12} + \frac{8}{12} - \frac{5}{12} \right) \times \left( \frac{12 + 5}{12} \right)^{ - 1} \\ = \frac{14 + 8 - 5}{12} \times \left(\frac{17}{12} \right) ^{ - 1} \\ = \frac{17}{12} \times \frac{12}{17} = 1 \\ [/tex]
