1)x + 2/2,4 = 8,5/6,8

x + 2/2,4 = 1 1/4

x +5/6 = 1 1/4

x = 1 1/4-5/6

x =5/12

2) 1/6 : x = 2 : 3 3/7

1/6 : x =7/12

x=7/12:1/6

x=3,5