Пожалуйста нужна срочно помощь!!!!

$\frac{13}{14} \div \frac{26}{35} = \frac{13}{14} \times \frac{26}{35} = \frac{1}{2} \times \frac{5}{2} = \frac{5}{4}$
$- \frac{28}{99} \div ( - \frac{14}{33} ) = \frac{28}{99} \times \frac{33}{14} = \frac{2}{3}$
$\frac{12}{17} \div ( - \frac{5}{17} ) = - \frac{12}{17} \times \frac{17}{5} = - 12 \times \frac{1}{5} \: (or \: - 2 \frac{2}{5} )$
$\frac{16}{35} \div ( - \frac{8}{7} ) = - \frac{16}{35} \times \frac{7}{8} = - \frac{2}{5}$
$- \frac{27}{25} \div \frac{9}{5} = - \frac{27}{25} \times \frac{5}{9} = - \frac{3}{5}$
$- \frac{23}{20} \div ( - \frac{46}{55} ) = \frac{23}{20} \times \frac{55}{46} = \frac{1}{4} \times \frac{11}{2} = \frac{11}{8}$
$- \frac{11}{10} \div ( - \frac{22}{30} ) = \frac{11}{10} \times \frac{30}{22} = \frac{3}{2}$
$\frac{71}{72} \div ( - \frac{71}{70} ) = \frac{71}{72} \times \frac{70}{71} = - \frac{1}{36} \times 35 = - \frac{35}{36}$

Надеюсь, все понятно, я старалась）

（or—это или）