[tex]12-3\frac{24}{25} 11\frac{25}{25}-3\frac{24}{25} = 8+\frac{1}{25} =8\frac{1}{25}[/tex]
[tex]1\frac{10}{11}\cdot \frac{7}{22}-\frac{5}{22} =\frac{21}{11}\cdot \frac{7}{22}-\frac{5}{22} =\frac{147}{242}-\frac{5}{22} =\frac{147}{242}-\frac{55}{242} =\frac{147-55}{242} =\frac{92}{242} =\frac{46}{121}[/tex]
Sper că te-am ajutat!
Succes!