Yes.
No
They are: 14/16 and 21/24
fractions which are equivalent to 3 over 7 = 6/14, 9/21, 12/28, 15/35,...
14 over 22 21 over 33
8/14 & 12/21
They are: 14/18 and 21/27
14/22 and 21/33
4/14, 6/21
3/7 or 9/21
They are: 7/13 and 14/26
2/14 & 3/21
1/7, 2/14