Решебник по математике 6 класс Мерзляк ФГОС Задание 210

\[\boxed{\mathbf{210\ }\left( \mathbf{210} \right)\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]

Пояснение.

Решение.

\[1)\ \frac{5}{15} = \frac{5\ :5}{15\ :5} = \frac{1}{3}\]

\[2)\ \frac{6}{20} = \frac{6\ :2}{20\ :2} = \frac{3}{10}\]

\[3)\ \frac{14}{35} = \frac{14\ :7}{35\ :7} = \frac{2}{5}\]

\[4)\ \frac{21}{39} = \frac{21\ :3}{39\ :3} = \frac{7}{13}\]

\[5)\ \frac{10}{60} = \frac{10\ :10}{60\ :10} = \frac{1}{6}\]

\[6)\ \frac{28}{84} = \frac{28\ :28}{84\ :28} = \frac{1}{3}\]

\[7)\ \frac{56}{72} = \frac{56\ :8}{72\ :8} = \frac{7}{9}\]

\[8)\ \frac{20}{25} = \frac{20\ :5}{25\ :5} = \frac{4}{5}\]

\[9)\ \frac{120}{180} = \frac{120\ :60}{180\ :60} = \frac{2}{3}\]

\[10)\ \frac{207}{243} = \frac{207\ :3}{243\ :3} = \frac{69\ :3}{81\ :3} =\]

\[= \frac{23}{27}\]

\[\boxed{\mathbf{210}\mathbf{.}}\]

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