11.
[tex]\dfrac{16}{100} =\\1)=\dfrac{160}{1000} \\2)=\dfrac{32}{200} \\3)=\dfrac{4}{25}[/tex]
12.
[tex]\dfrac{32}{48}=\\1) =\dfrac{4}{6} \\2)=\dfrac{64}{96} \\3)=\dfrac{2}{3}[/tex]
13.
[tex]\dfrac{21}{48} =\\1)=\dfrac{7}{16} \\2)=\dfrac{42}{96} \\3) =\dfrac{210}{480}[/tex]
