26/15+((107/20)*4,5+(89/10)*4,5)/3,75-7/9=26/15+4,5(107/20+178/20)/3,75-7,9=26/15+4,5*(285/20)/3,75-7/9=26/15+1,2*(285/20)-7/9=26/15+(6/5)*(57/4)-7/9=26/15+(57*3)/(5*2)-7/9=26/15+171/10-7/9=26*6/90+171*9/90-7*10/90=(156+1539-70)/90=1625/90=18 целых 5/90=18 целых 1/18