ГДЗ по математике 5 класс Мерзляк ФГОС Задание 1149

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\[1)\ \left( 2\frac{13}{48} + 2\frac{5^{\backslash 4}}{12} \right)\ :3\frac{3}{4} - 9\frac{3}{4}\ :12 =\]

\[= 4\frac{13 + 20}{48}\ :\frac{15}{4} - \frac{39}{4} \cdot \frac{1}{12} =\]

\[= 4\frac{33}{48} \cdot \frac{4}{15} - \frac{39}{4 \cdot 12} =\]

\[= 4\frac{11}{16} \cdot \frac{4}{15} - \frac{13}{16} =\]

\[= \frac{5^{\backslash 4}}{4} - \frac{13}{16} = \frac{20 - 13}{16} = \frac{7}{16}\]

\[= \left( 8\ :\frac{48}{19} - \frac{28}{15} \cdot \frac{55}{49} \right)\ :\left( 3\frac{3}{36} - 1\frac{25}{36} \right) =\]

\[= \left( \frac{19^{\backslash 7}}{6} - \frac{44^{\backslash 2}}{21} \right)\ :\frac{25}{18} =\]

\[= \frac{133 - 88}{42} \cdot \frac{18}{25} =\]