Welche Aussage ist richtig?
\(- \dfrac {8}{14} > - \dfrac {15}{21}\)
\( + \dfrac {8}{14} > + \dfrac {15}{21}\)
\(- \dfrac {8}{14} = - \dfrac {15}{21}\)
\(- \dfrac {8}{14} < - \dfrac {15}{21}\)
