Подробное решение примеров: ПОДРОБНОЕ 1) 1\8 + 2 3/5 + 2 7/8 = 2) 6 11/12 - 3 1/6 - 1 1/4...

$\frac{1}{8} +2 \frac{3}{5} +2 \frac{7}{8} = \frac{1}{8} + \frac{13}{5} + \frac{23}{8} \\ \frac{5+104+115}{40} = \frac{224}{40} =5 \frac{24}{40} =5 \frac{3}{5} =5.6$ \\ \\ $6 \frac{11}{12} -3 \frac{1}{6} -1 \frac{1}{4} = \frac{93}{12} - \frac{19}{6} - \frac{5}{4} = \frac{83-38-15}{12} = \frac{30}{12} =2 \frac{6}{12} =2 \frac{1}{2} =2.5$ \\ \\ $3 \frac{7}{9} -1 \frac{5}{8} +3 \frac{1}{2} = \frac{272-117+252}{72} = \frac{407}{72} =5 \frac{47}{72}$