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

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Ответы 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}
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