Question

Пожалуйста решите пример.

Answer 1

$(8,25 frac{10}{11} -10)(11 frac{2}{3} :2 frac{2}{9} -6,15)+12,7:(-2 frac{1}{2} )= \ = ( frac{8,25*10}{11} - frac{10*11}{11} )( frac{35}{3} frac{9}{20} -6,15)- frac{127}{10} frac{5}{2} = \ = frac{82,5-110}{11} ( frac{7*3}{4} - frac{61,5}{10})- frac{127}{4} = \ = frac{27,5}{11} frac{21*5-61,5*2}{20} - frac{127}{4} = frac{27,5*(-18)}{11*20} -frac{127}{4}= \ = frac{-55*9-55*127}{11*20} = frac{55*(-127-9)}{11*20} = frac{-136}{4} = -34$