Question

как решить -8/25×15/14-11/48÷(-7/8)

Answer 1

-8/25×15/14-11/48÷(-7/8)
$- frac{8}{25} * frac{15}{14} - frac{11}{48} :(- frac{7}{8} )= \ \ =- frac{4*2*3*5}{5*5*2*7} + frac{11}{48} : frac{7}{8} = \ \ =- frac{4*3}{5*7} + frac{11}{48} * frac{8}{7} = - frac{12}{5*7} + frac{11*8}{6*8*7} = \ \ = - frac{12}{5*7} + frac{11}{6*7} = -frac{12*6}{5*7*6} + frac{11*5}{6*7*5} = \ \ = frac{-72+55}{5*6*7} = frac{-17}{210} =- frac{17}{210}$