Question

$(-1,25+1 \frac{7}{8} ) : (-1 \frac{1}{12} - 0,5)$

Answer 1

$(-1,25+1 \frac{7}{8} ) : (-1 \frac{1}{12} - 0,5)= (-1 \frac{1}{4} +1 \frac{7}{8} ) : (-1 \frac{1}{12} - \frac{1}{2} )= \\\ =(- \frac{5}{4} + \frac{15}{8} ) : (- \frac{13}{12} - \frac{1}{2} )= (- \frac{10}{8} + \frac{15}{8} ) : (- \frac{13}{12} - \frac{6}{12} )= \\\ = \frac{-10+15}{8} : \frac{-13-6}{12}= \frac{5}{8} : (- \frac{19}{12})= \frac{5}{8}\cdot (- \frac{12}{19})=- \frac{5\cdot12}{8\cdot19}=- \frac{5\cdot3}{2\cdot19}=- \frac{15}{38}$