Выполните действия : (11 2/3 - 8 3/4) + (3 1/3 + 2 5/6) - 4 7/12

11 2/3-8  3/4=35/3-36/4=(140-108)/12=32/12=8/33 1/3+2 5/6=10/3+17/6=37/68/3+37/6=53/653/6-4 7/12=53/6-57/12=(106-57)/12=49/12=4  1/12

[latex](11 frac{2}{3} - 8 frac{3}{4}) + (3 frac{1}{3} + 2 frac{5}{6}) - 4 frac{7}{12} = frac{(11*3+2)*4 - (8*4+3)*3}{12} + frac{(3*3+1)*4}{12} +[/latex][latex]+ frac{(2*6+5)*2}{12} - frac{4*12+7}{12} = frac{140-105+40+34-55}{12} = frac{54}{12} = 4 frac{6}{12} = 4 frac{1}{2} [/latex]