Răspuns:
Explicație pas cu pas:
Buna!
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[tex]\bf \circledast ~ \dfrac{11}{5}= \dfrac{2\cdot 5 +1}{5}= \boxed{\bf 2\dfrac{1}{5}}[/tex]
[tex]\bf \star~ \dfrac{6}{5}= \dfrac{1\cdot 5 +1}{5}= \boxed{\bf 1\dfrac{1}{5}}[/tex]
[tex]\bf \ast~ \dfrac{11}{2}= \dfrac{5\cdot 2 +1}{2}= \boxed{\bf 5\dfrac{1}{2}}[/tex]
[tex]\bf \odot ~ \dfrac{7}{3}= \dfrac{2\cdot 3 +1}{3}= \boxed{\bf 2\dfrac{1}{3}}[/tex]
[tex]\bf \circledast ~ \dfrac{9}{2}= \dfrac{4\cdot 2 +1}{2}= \boxed{\bf 4\dfrac{1}{2}}[/tex]
[tex]\bf \star~ \dfrac{21}{4}= \dfrac{5\cdot 4 +1}{4}= \boxed{\bf 5\dfrac{1}{4}}[/tex]
[tex]\bf \ast~ \dfrac{40}{7}= \dfrac{5\cdot 7 +5}{7}= \boxed{\bf 5\dfrac{5}{7}}[/tex]
[tex]\bf \odot ~ \dfrac{50}{7}= \dfrac{7\cdot 7 +1}{7}= \boxed{\bf 7\dfrac{1}{7}}[/tex]
[tex]\bf \circledast ~ \dfrac{3}{2}= \dfrac{1\cdot 2 +1}{2}= \boxed{\bf 1\dfrac{1}{2}}[/tex]
[tex]\bf \star~ \dfrac{4}{3}= \dfrac{1\cdot 3 +1}{3}= \boxed{\bf 1\dfrac{1}{3}}[/tex]
[tex]\bf \ast~ \dfrac{5}{4}= \dfrac{1\cdot 4 +1}{4}= \boxed{\bf 1\dfrac{1}{4}}[/tex]