Răspuns :
[tex] \frac{3}{1} \div \frac{5}{2} = \frac{3}{1} \times \frac{2}{5} = \frac{6}{5} [/tex]
[tex] \frac{5}{1} \div \frac{3}{4} = \frac{5}{1} \times \frac{4}{3} = \frac{20}{3} [/tex]
[tex] \frac{8}{1} \div \frac{1}{2} = \frac{8}{1} \times \frac{2}{1} = \frac{16}{1} = 16[/tex]
[tex] \frac{2}{1} \div 3 \times \frac{1}{2} = \frac{2}{1} \div \frac{3 \times 2 + 1}{2} = \frac{2}{1} \div \frac{6 + 1}{2} = \frac{2}{1} \div \frac{7}{2} = \frac{2}{1} \times \frac{2}{7} = \frac{4}{7} [/tex]
[tex] \frac{5}{3} \div \frac{4}{1} = \frac{5}{3} \times \frac{1}{4} = \frac{5}{12} [/tex]
[tex] \frac{8}{7} \div \frac{6}{1} = \frac{8}{7} \times \frac{1}{6} = \frac{8}{42} [/tex]
acum simplificăm fracția cu 2
[tex] \frac{4}{21} [/tex]
[tex] \frac{1}{3} \div \frac{3}{1} = \frac{1}{3} \times \frac{1}{3} = \frac{1}{3} [/tex]
[tex]2 \times \frac{3}{2} \div \frac{2}{1} = \frac{2 \times 2 + 3}{2} \div \frac{2}{1} = \frac{4 + 3}{2} \div \frac{2}{1} = \frac{7}{2} \times \frac{1}{2} = \frac{7}{2} [/tex]