2/6, 7/21, 1/3, 28/84, etc, etc, ETC.
42/75 = 14/25
42/14 = 3
equivalent fraction of 4/14 = 2/7, 8/28, 12/42, ...
equivalent fraction for 21 over 23 = 42/46
The simplified fraction of 33/42 is 11/14.
Well, honey, if you wanna simplify that fraction, 28 over 42 is the same as 2/3. So, any fraction that can be reduced to 2/3 is equivalent to 28 over 42. Math doesn't have to be complicated, just like a good slice of cheesecake - simple and satisfying.
1/2 ,
2/5
42/50
7/9
7/8
2/3