Представьте число в виде десятичной дроби:
а) $\frac{1}{5}; \frac{3}{4}; 2\frac{7}{8}; 3\frac{17}{20}$;
б) $\frac{17}{40}; \frac{63}{125}; 4\frac{2}{5}; 2\frac{5}{16}$;
в) $\frac{14}{35}; \frac{72}{75}; 5\frac{33}{220}; 1\frac{6}{15}$;
г) $\frac{7}{5}; \frac{32}{25}; \frac{13}{10}; \frac{73}{50}$.
$\frac{1}{5} = \frac{1 * 2}{5 * 2} = \frac{2}{10} = 0,2$;
$\frac{3}{4} = \frac{3 * 25}{4 * 25} = \frac{75}{100} = 0,75$;
$2\frac{7}{8} = 2\frac{7 * 125}{8 * 125} = 2\frac{875}{1000} = 2,875$;
$3\frac{17}{20} = 3\frac{17 * 5}{20 * 5} = 3\frac{85}{100} = 3,85$.
$\frac{17}{40} = \frac{17 * 25}{40 * 25} = \frac{425}{1000} = 0,425$;
$\frac{63}{125} = \frac{63 * 8}{125 * 8} = \frac{504}{1000} = 0,504$;
$4\frac{2}{5} = 4\frac{2 * 2}{5 * 2} = 4\frac{4}{10} = 4,4$;
$2\frac{5}{16} = 2\frac{5 * 625}{16 * 625} = 2\frac{3125}{10000} = 2,3125$.
$\frac{14}{35} = \frac{14 : 7}{35 : 7} = \frac{2}{5} = \frac{4}{10} = 0,4$;
$\frac{72}{75} = \frac{72 : 3}{75 : 3} = \frac{24}{25} = \frac{96}{100} = 0,96$;
$5\frac{33}{220} = 5\frac{33 : 11}{220 : 11} = 5\frac{3}{20} = 5\frac{15}{100} = 5,15$;
$1\frac{6}{15} = 1\frac{2}{5} = 1\frac{4}{10} = 1,4$.
$\frac{7}{5} = \frac{14}{10} = 1,4$;
$\frac{32}{25} = \frac{128}{100} = 1,28$;
$\frac{13}{10} = 1,3$;
$\frac{73}{50} = \frac{146}{100} = 1,46$.
Пожауйста, оцените решение