Question

решить примеры (-1,56-1,24)*(1 5/14) и (4 5/9-3 7/12):(-1 8/27 )

Answer 1

$(-1.56-1.24)*(1\frac{5}{14} )=-2.8*\frac{19}{14} =-\frac{28}{10} *\frac{19}{14} =-\frac{38}{10} =-\frac{19}{5}=-3\frac{4}{5} \\\\(4\frac{5}{9}-3\frac{7}{12} ):(-1\frac{8}{27} )=(\frac{41}{9} -\frac{43}{12} ):(-\frac{35}{27} )=(\frac{164}{36} -\frac{129}{36} )*(-\frac{27}{35} )=\frac{35}{36} *(-\frac{27}{35} )=\\\\=-\frac{27}{36} =-\frac{3}{4}$