Задание

Заполни пропуски

Найди разность:

а) \dfrac{4}{7} - \dfrac{1}{2} = \dfrac{8 - 7}{14} = \dfrac{1}{14};

\raisebox{-1em}{$ \dfrac{1}{2} - \dfrac{1}{8} = $}\mathrlap{\,\raisebox{-1em}{$\begin{array}{c}\, \phantom{ 4-1 } \,\\ \hline 8 \\ \end{array} $}} = ;

\raisebox{-1em}{$ \dfrac{5}{6} - \dfrac{1}{4} = $}\mathrlap{\,\raisebox{-1em}{$\begin{array}{c}\, \phantom{ 10-3 } \,\\ \hline 12 \\ \end{array} $}} = .

б)

\dfrac{1}{6} - \dfrac{1}{12} = = ;

\dfrac{3}{10} - \dfrac{2}{15} = = ;

\dfrac{11}{8} - \dfrac{5}{6} = = .