Решите пример 9/22-4/9: (3- 1 8/15)+8/11

9/22-4/9: (3-1 8/15)+8/11

1) 3- 1 8/15=3-23/15=(45-23)/15=22/15

2)4/9: 22/15=(4*15)/(9*22)=10/33

3)9/22-10/33=(8*3-10*2)/66=(27-29)/66=7/66

4)7/66+8/11=(7+8*6)/66=55/66=5/6

ответ: 9/22-4/9: (3-1 8/15)+8/11

1) 3- 1 8/15=3-23/15=(45-23)/15=22/15

2)4/9: 22/15=(4*15)/(9*22)=10/33

3)9/22-10/33=(8*3-10*2)/66=(27-29)/66=7/66

4)7/66+8/11=(7+8*6)/66=55/66=5/6

пошаговое объяснение:

i-x+8

ii-x

ii-x-4

x+8-(x-4)=x+8-x+4=12 ответ на 12 см