Răspuns:
Explicație pas cu pas:
Exercițiul 1
[tex]\Large \bf a)~~ \dfrac{1}{3}[/tex]
[tex]\Large\bf b)~~ \dfrac{8}{5}[/tex]
[tex]\Large\bf c)~~ \dfrac{13}{10}[/tex]
[tex]\Large\bf d)~~ \dfrac{19}{9}[/tex]
Exercițiul 2
[tex]\Large\bf a)~~ \dfrac{7}{15}[/tex]
[tex]\Large\bf b)~~ \dfrac{17}{23}[/tex]
[tex]\large \bf c)~~ \dfrac{7}{3\cdot 7} = \boxed{\bf\dfrac{7}{21}}[/tex]
[tex]\large\bf d)~~ \dfrac{9-2}{9}=\boxed{\bf \dfrac{7}{9}}[/tex]
==pav38==