Respuesta :
					                   [tex] \frac{7}{12} - \frac{2}{3} \\ \\ LCD = 12 \\ \\  \frac{7}{12} -  \frac{2 \times 4}{3 \times 4} \\ \\  \frac{7}{12} - \frac{8}{12} \\ \\  \frac{7 - 8}{12} \\ \\ - \frac{1}{12} \\ \\ Answer: \fbox {-1/12} / or / \fbox {-0.0833}[/tex]
					                
					                
					              
					                  