Răspuns:
[tex]\frac{29}{12}[/tex]
Explicație pas cu pas:
[tex]11\frac{5}{6} - 8\frac{5}{12} - 1 =[/tex]
[tex]= \frac{11*6 + 5}{6} - \frac{8*12+5}{12} - 1[/tex]
[tex]= \frac{66+5}{6} - \frac{96+5}{12} - 1[/tex]
[tex]= \frac{71}{6} - \frac{101}{12} - 1[/tex]
[tex]= \frac{2*71}{12} - \frac{101}{12} - \frac{12}{12}[/tex]
[tex]= \frac{142 - 101 - 12}{12}[/tex]
[tex]= \frac{29}{12}[/tex]
