Explicație pas cu pas:
a)
[tex]((1 + 2) + ( \frac{7}{12} + \frac{1}{3} )) - ( \frac{9}{4} - \frac{7}{6} ) = [/tex]
[tex](3 + \frac{11}{12} ) - \frac{13}{12} = [/tex]
[tex]3 \frac{11}{12} - \frac{13}{12} = [/tex]
[tex] \frac{47}{12} - \frac{13}{12} = [/tex]
[tex] \frac{17}{6} [/tex]
b)
[tex]( \frac{131}{14} - \frac{263}{42} ) - ( \frac{115}{14} - \frac{121}{21} ) = [/tex]
[tex] \frac{65}{21} - \frac{103}{42} = [/tex]
[tex] \frac{9}{14} [/tex]
Sper ca te-am ajutat
