Question

решить пример (12 целых 1/3 - 7 целых 3/4)*6/11

(2 целых 3/5 -5/8)/19 целых 3/4

Answer 1

$(12 frac{1*4}{3*4} -7 frac{3*3}{4*3} )* frac{6}{11} = 3 frac{7}{12} * frac{6}{11} = frac{43}{12}* frac{6}{11}= frac{43}{22} =1 frac{21}{22} \ (2 frac{3}{5} - frac{5}{8} ):19 frac{3}{4} =( frac{13*8}{5*8} - frac{5*5}{8*5}) : frac{79}{4} = frac{104-25}{40}* frac{4}{79} = frac{79}{40} * frac{4}{79} = frac{1}{10} =0,1$