1/11+1/33-1/12-1/29 =1/11*12-4/33^29 =2*2/22*24-4/33*29>0 1/12+1/29-1/13-1/25 =1/12*13-4/29*25 =2*2/26*24-4/29*25>0 1/13+1/25-1/14+1/21 =1/13*14-4/25*21 =2*2/26*28-4/25*210 2*2*2/24*28-8/29*210 (1/11+...