Решебник по математике 6 класс Мерзляк ФГОС Задание 258

\[\boxed{\mathbf{258\ (258)}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]

\[1)\ \frac{3}{7} < x < \frac{4}{7}\ \]

\[\frac{9}{21} < x < \frac{12}{21}\]

\[Ответ\ :\frac{10}{21};\ \frac{11}{21}.\]

\[2)\ \frac{1}{5} < x < \frac{1}{4}\]

\[\frac{12}{60} < x < \frac{15}{60}\]

\[Ответ:x = \frac{13}{60};\ \frac{14}{60}.\]

\[3)\ \frac{1}{7} < x < \frac{1}{6}\]

\[\frac{18}{126} < x < \frac{21}{126}\]

\[Ответ:\frac{19}{126};\frac{20}{126}.\]

\[4)\ \frac{98^{\backslash 3}}{99} < x < 1\]

\[\frac{294}{297} < x < \frac{297}{297}\]

\[Ответ:\frac{295}{297};\ \frac{296}{297}.\]

\[\boxed{\mathbf{258}\mathbf{.}}\]

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