1) 3,2b - 4,3b - 3,2b = -4,3b
2) 1,9d - 4,2d + 3,1d = 0,8d
3) 1/3b + 1/5b - 2/15b = 5/15b + 3/15b - 2/15b = 6/15b = 2/5b
1) 3,2b - 4,3b - 3,2b = -4,3b
2) 1,9d - 4,2d + 3,1d = 0,8d
3) 1/3b + 1/5b - 2/15b = 5/15b + 3/15b - 2/15b = 6/15b = 2/5b