ПРОШУУ!!!!Найдите двумя способами представление обыкновенных дробей в виде конечных...

Решите задачу:

$\frac{3}{4} =3:4=0,75, \\ \frac{3}{4} = \frac{3\cdot25}{4\cdot25}= \frac{75}{100} =0,75; \\ \frac{11}{25} = 11:25=0,44, \\ \frac{11}{25} = \frac{11\cdot4}{25\cdot4}= \frac{44}{100} =0,44; \\ \frac{1}{20} = 1:20=0,05, \\ \frac{1}{20} = \frac{1\cdot5}{20\cdot5}= \frac{5}{100} =0,05; \\ \frac{7}{50} = 7:50=0,14, \\ \frac{7}{50} = \frac{7\cdot2}{50\cdot2}= \frac{14}{100} =0,14; \\ \frac{17}{500} = 17:500=0,034, \\ \frac{17}{500} = \frac{34}{1000} =0,14;$
$\frac{9}{125} = 9:125=0,072, \\ \frac{9}{125} = \frac{72}{1000} =0,072; \\ \frac{15}{16} = 15:16=0,9375, \\ \frac{15}{16} = \frac{9375}{10000} =0,9375; \\ \frac{27}{40} = 27:40=0,675, \\ \frac{27}{40} = \frac{675}{1000} =0,675. \\$