402 403 404

402

Знаменатели одинаковые — сравниваем числители:

\[ \frac{1}{15}<\frac{2}{15}<\frac{3}{15}<\frac{4}{15}<\frac{6}{15}<\frac{7}{15}<\frac{11}{15}<\frac{12}{15} \]

403

Приводим к общему знаменателю:

1. \(\frac{5}{8}<\frac{3}{4}\) (так как \(\frac{3}{4}=\frac{6}{8}\))
2. \(\frac{2}{3}<\frac{7}{9}\) (\(\frac{2}{3}=\frac{6}{9}\))
3. \(\frac{1}{16}<\frac{7}{8}\) (\(\frac{7}{8}=\frac{14}{16}\))
4. \(\frac{7}{9}<\frac{17}{18}\) (\(\frac{7}{9}=\frac{14}{18}\))
5. \(\frac{7}{12}<\frac{8}{9}\) (\(\frac{21}{36}<\frac{32}{36}\))
6. \(\frac{2}{9}>\frac{1}{10}\) (\(\frac{20}{90}>\frac{9}{90}\))
7. \(\frac{5}{24}>\frac{3}{16}\) (\(\frac{10}{48}>\frac{9}{48}\))
8. \(\frac{1}{20}<\frac{2}{15}\) (\(\frac{3}{60}<\frac{8}{60}\))

404

Приводим к знаменателю 30: \(\frac{10}{30},\ \frac{12}{30},\ \frac{9}{30},\ \frac{8}{30},\ \frac{7}{30}\).

\[ \frac{7}{30}<\frac{4}{15}<\frac{3}{10}<\frac{1}{3}<\frac{2}{5} \]