Question

Даю 10 баллов толко помагите пллиииииииииииииз!!!!!!!

Answer 1

$1.) frac{2}{5} div frac{2}{25} = frac{2}{5} times frac{25}{2} = frac{1}{1} times frac{5}{1} = frac{5}{1} = 5 \ 2.) frac{2}{3} div frac{14}{15} = frac{2}{3} times frac{15}{14} = frac{1}{1} times frac{5}{7} = frac{5}{7} \ 3.) frac{3}{28} div frac{6}{7} = frac{3}{28} times frac{7}{6} = frac{1}{4} times frac{1}{2} = frac{1}{8} \ 4 .) frac{3}{8} div frac{27}{32} = frac{3}{8} times frac{32}{27} = frac{1}{1} times frac{4}{9} = frac{4}{9} \ 5.) frac{2}{3} div frac{10}{1} = frac{2}{3} times frac{1}{10} = frac{1}{3} times frac{1}{5} = frac{1}{15} \ 6.) frac{4}{5} div frac{8}{1} = frac{4}{5} times frac{1}{8} = frac{1}{5} times frac{1}{2} = frac{1}{10} \ 7.) frac{5}{6} div frac{10}{1} = frac{5}{6} times frac{1}{10} = frac{1}{6} times frac{1}{2} = frac{1}{12} \ 8.) frac{3}{7} div frac{12}{1} = frac{3}{7} times frac{1}{12} = frac{1}{7} times frac{1}{4} = frac{1}{28} \ 9.) frac{4}{1} div frac{2}{5} = frac{4}{1} times frac{5}{2} = frac{2}{1} times frac{5}{1} = 10 \ 10.) frac{21}{1} div frac{7}{8} = frac{21}{1} div frac{8}{7} = frac{3}{1} times frac{8}{1} = 21 \ 11.) frac{25}{1} div frac{5}{8} = frac{25}{1} times frac{8}{5} = 5 times 8 = 40 \ 12.) frac{8}{1} div frac{16}{21} = frac{8}{1} times frac{21}{16 } = 1 times frac{21}{2} = 10 frac{1}{2} \ 13.) frac{1}{8} div frac{3}{4} = frac{1}{8} times frac{4}{3} = frac{1}{2} times frac{1}{3} = frac{1}{6} \ 14.) frac{1}{2} div frac{9}{1} = frac{1}{2} times frac{1}{9} = frac{1}{18} \ 15.) frac{2}{5} div frac{7}{1} = frac{2}{5} times frac{1}{7} = frac{2}{35} \ 16.) frac{3}{4} div frac{9}{16} = frac{3}{4} times frac{16}{9} = frac{1}{1} times frac{4}{3} = frac{4}{3} = 1 frac{1}{3}$