Răspuns: Mai jos ai rezolvarea
Explicație pas cu pas:
Buna!
[tex]\large\bf \circledast ~~ 4\dfrac{2}{3} -1\dfrac{1}{3}= \dfrac{4\cdot 3+2}{3} -\dfrac{1\cdot 3+1}{3}= \dfrac{14}{3} -\dfrac{4}{3}=\dfrac{14-4}{3} =\boxed{\large\bf \dfrac{10}{3}~sau~3\dfrac{1}{3}}[/tex]
[tex]\large\bf \circledast ~~ 4\dfrac{5}{9} -\dfrac{2}{9}= \dfrac{4\cdot 9+5}{3} -\dfrac{2}{9}= \dfrac{41}{9} -\dfrac{2}{9}=\dfrac{39}{9} =\dfrac{\not39}{\not9}=\boxed{\large\bf \dfrac{13}{3}~sau~4\dfrac{1}{3}}[/tex]
[tex]\large\bf \circledast ~~ 7\dfrac{11}{15} -2\dfrac{1}{15}= \dfrac{7 \cdot 15+11}{15} -\dfrac{2 \cdot 15+1}{15}= \dfrac{116-31}{15} =\dfrac{85}{15} =\boxed{\large \bf \dfrac{17}{3}~sau~5\dfrac{2}{3}}[/tex]
PS: Daca esti pe telefon, te rog sa glisezi spre dreapta pentru a vedea rezolvarea completa
==pav38==
