Răspuns:
[tex]a) x = \dfrac{7}{9} : \dfrac{2}{3} = \dfrac{7}{9} \cdot \dfrac{3}{2} = \bf \dfrac{7}{6}[/tex]
[tex]b) x = \dfrac{76}{25} : \dfrac{24}{100} = \dfrac{76}{25} \cdot \dfrac{100}{24} = \bf \dfrac{38}{3}[/tex]
[tex]c) x = \dfrac{33}{96} \cdot \dfrac{48}{11} = \dfrac{33}{96} : \dfrac{11}{48} = \bf\dfrac{3}{2}[/tex]
[tex]d) x = \dfrac{54}{100} : \dfrac{5+4}{5} = \dfrac{54}{100} \cdot \dfrac{5}{9} = \bf \dfrac{3}{10}[/tex]
[tex]e) x = \dfrac{17}{29} : \dfrac{51}{58} = \dfrac{17}{29} \cdot \dfrac{58}{51} = \bf \dfrac{2}{3}[/tex]
[tex]f) x = \dfrac{7}{100} : \dfrac{4 \cdot 10 + 2}{10} = \dfrac{7}{100} \cdot \dfrac{10}{42} = \bf \dfrac{1}{60}[/tex]