Ответ(ы) на вопрос:
1)[latex]-2 \frac{1}{6} +5 \frac{1}{4} =-2 \frac{2}{12} +5 \frac{3}{12} =3 \frac{1}{12} = \frac{37}{12} [/latex]
2)1,75+[latex] \frac{37}{12} = \frac{7}{4} + \frac{37}{12} = \frac{21}{12} + \frac{37}{12} = \frac{58}{12} = \frac{29}{6} [/latex]
3)[latex]5,6- \frac{29}{6} = \frac{28}{5} - \frac{29}{6} = \frac{168}{30} - \frac{145}{30} = \frac{23}{30} [/latex]
4)[latex]-2,4- \frac{23}{30} =- \frac{24}{10} - \frac{23}{30}= - \frac{72}{30} - \frac{23}{30} =- \frac{95}{30} =-3 \frac{5}{30}=-3 \frac{1}{6} [/latex]
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