2, 7, and 14
fraction of 42 is 28 = 28/42 or 2/3
42-28 = 14
28/42 x 100 = % Answer = 66.66666 recurring % = 67%
28 + 42 = 70
28 is not a factor of 42.
These numbers: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84.
28 : 42 = 2 : 3
42 x 28 = 1176
28 + 42 = 70
42 - 28 = 14
28/42 = 2/3