Explicație pas cu pas:
[tex]( \frac{3 \times 2 + 1}{2} \div \frac{2 \times 3 + 1}{3} ) \div (6 \div \frac{12}{19} ) = ( \frac{7}{2} \div \frac{7}{3} ) \div (6 \times \frac{19}{12} ) = ( \frac{7}{2} \times \frac{3}{7} ) \div \frac{19}{2} = \frac{3}{2} \times \frac{2}{19} = \frac{3}{19}[/tex]
