a)
[tex]\frac{2}{5} =\frac{10}{25}[/tex]
[tex]\frac{1}{3} =\frac{6}{18}[/tex]
b)
[tex]\frac{4}{7} =\frac{20}{35}[/tex]
[tex]\frac{3}{8} =\frac{24}{64} \\[/tex]
c)
[tex]\frac{2}{5} =\frac{6}{15}[/tex]
[tex]\frac{3}{4} =\frac{15}{20}[/tex]
d)
[tex]\frac{3}{4} =\frac{27}{36}[/tex]
[tex]\frac{2}{7} =\frac{12}{42}[/tex]
