28/54, 42/81
They are: 14/16 and 21/24
14 over 22 21 over 33
There are an infinite number of such fractions. 14/26, 21/39 are two examples.
12/14...24/28
They are: 4/14 and 8/28
They are: 22/28 and 44/56
1/7, 2/14
They are: 7/13 and 14/26
4/14, 6/21
1/7 and 2/14
8/14 & 12/21
14/24 and 7/12