Răspuns:
a) [tex]\frac{5}{12}[/tex]; b)1
Explicație pas cu pas:
Bună!
a) [tex]^{4)} \frac{1}{3} -^{3)} \frac{3}{4} +^{2)} \frac{5}{6} =[/tex]
[tex]=\frac{4-9+10}{12} =\frac{-5+10}{12} =\frac{5}{12}[/tex]
b) [tex]^{3)} \frac{3}{5} -\frac{4}{15} +^{5)} \frac{2}{3} =[/tex]
[tex]=\frac{9-4+10}{15} =\frac{5+10}{15} =\frac{15}{15} =1[/tex]
