-3/11меньше-0,26 и -0,2 но меньше -2/11
Пошаговое объяснение:
35 - (7 + 8) = 35 - 15 = 20,
84 - 40 - 4 = 84 - (40 + 4) = 84 - 44 = 40,
90 - 26 = 90 - (20 + 6) = 90 - 20 - 6 = (90 - 20) - 6 = 70 - 6 = 64
3 12/13- 1 5/13-1 9/13+2 3/13=51/13-18/13-22/13+29/13=40/13=3 1/13
20_3/8 - (6 - 2_1/6)=163/8- (36/6-13/6)=163/8-23/6=(163*3-23*4)/24=(489-138)/24=351/24=117/8=14_5/8