Răspuns:
2. a) [tex]\frac{3}{2}* \frac{3}{5} = \frac{9}{10}[/tex]
b) [tex]\frac{2}{7} *\frac{8}{5} =\frac{16}{35}[/tex]
c) [tex]\frac{4}{5}*\frac{7}{3}=\frac{28}{15}[/tex]
d) [tex]\frac{8}{3}*\frac{5}{7}=\frac{40}{21}[/tex]
e) [tex]\frac{5}{9}*\frac{7}{2}=\frac{35}{18}[/tex]
f)[tex]\frac{8}{5}*\frac{4}{9}=\frac{32}{45}[/tex]
3. a) [tex]\frac{12}{63}=\frac{4}{21}[/tex]
b) [tex]\frac{20}{72}=\frac{10}{36}=\frac{5}{18}[/tex]
