Yes, it can be simplified and the simplest form of 16 over 42 is 8 over 21.
8 and one-third. 8 + 1/3.
16/50 Divide both sides by 2, you get 8/25 which cannot be simplified further
8 over 45
10/16 = 5/8 simplified
8/25 is.
4/25
1650/16 = 825/8 = 1031/8
16 over 24 becomes 2/3 when simplified.
6/16 = 3/8
8/17
8/31