№122: 3) 0,1; 0,6 4) 1; 1
№123: 3) 2 19/30; 9 1/2 4) 6 4/25; 4 21/25
Пошаговое объяснение:
№ 122.
3) (4/5 + 0,3) : 11 =(0,8 + 0,3) : 11 = 1,1 : 11 = 0,1
0,15 * (0,06 + 3,94) = 0,15 * 4 = 0,6
4. 0,375 + 5/8 = 0,375 + 0,625 = 1
11/16 + 0,3125 = 0,6875 + 0,3125 = 1
№ 123.
3) 2,3 + 1/3 = 2 3/10 + 1/3 = 23/10 + 1/3 = (23*3 + 10*1)/ 30 = 79/30 = 2 19/30
9,6 - 1/6 = 9 6/10 - 1/6 = 9 3/5 - 1/ 6 = 48/5 - 1/6 = (48*6 - 1*5) /30 = 285/30 = 9 15/30 = 9 1/2
4) 5 3/5 + 0,56 = 5 3/5 + 56/100 = 28/5 + 14/25 = (28*5 + 14)/ 25 =
154/25 = 6 4/25
2 4/5 + 2,04 = 14/5 + 2 4/100 = 14/5 + 2 2/50 = 14/5 + 102/50 =
(14*10 + 102)/50 = 242/50 = 121/25 = 4 21/25
