Răspuns:
1) a) [tex]\frac{55-5}{9} =\frac{50}{9}[/tex]
b) [tex]\frac{23}{99}[/tex] c) [tex]\frac{74-7}{9} =\frac{67}{9}[/tex] d) [tex]\frac{40}{99}[/tex]
2. a) [tex]\frac{324-32}{90} =\frac{292}{90} =\frac{146}{45}[/tex]
b) [tex]\frac{4905-49}{990} =\frac{4856}{990} =\frac{2428}{495}[/tex]
c)[tex]\frac{535-53}{90} =\frac{482}{90} =\frac{241}{45}[/tex]
d) [tex]\frac{1216-12}{990} =\frac{1204}{990} =\frac{602}{495}[/tex]