Sagot :
[tex]( \frac{13}{18} )(12 \frac{3}{5} ) \\ = ( \frac{13}{18} )( \frac{63}{5} ) \\ = ( \frac{13}{2} )( \frac{7}{5} ) \\ = \frac{91}{10} \\ = 9 \frac{1}{10} [/tex]
[tex]( \frac{13}{18} )(12 \frac{3}{5} ) \\ = ( \frac{13}{18} )( \frac{63}{5} ) \\ = ( \frac{13}{2} )( \frac{7}{5} ) \\ = \frac{91}{10} \\ = 9 \frac{1}{10} [/tex]