Пожалуйста, помогите! Сравните дроби : 7/10 и 13/20 , 2/3 и 5/8 , 7/10 и 3/4 ; 7/9 и 5/6 ; 7/15 и 9/20

1)[latex] frac{7}{10}= frac{14}{20} ; frac{14}{20} extgreater frac{13}{20}; frac{7}{10} extgreater frac{13}{20} [/latex]2)[latex] frac{2}{3}= frac{16}{24}; frac{5}{8}= frac{15}{24}; frac{16}{24} extgreater frac{15}{24}; frac{2}{3} extgreater frac{5}{8} [/latex]3)[latex]frac{7}{10}= frac{14}{20}; frac{3}{4}= frac{15}{20}; frac{14}{20} extless frac{15}{20}; frac{7}{10} extless frac{3}{4}[/latex]4)[latex]frac{7}{9}= frac{14}{18}; frac{5}{6}= frac{15}{18}; frac{14}{18} extless frac{15}{18}; frac{7}{9} extless frac{5}{6}[/latex]5)[latex]frac{7}{15}= frac{28}{60}; frac{9}{20}= frac{27}{60}; frac{28}{60} extgreater frac{27}{60}; frac{7}{15} extgreater frac{9}{20}[/latex]