Two equivalent fractions are 2 over 12, and 3 over 18. There much more equivalent fractions besides those.
2/9
They are: 16/18 and 24/27
14/36 and 10/36
10 over 12 or 15 over 18.
16 over 18 and 24 over 27
Two equivalent fractions for 6/18 are 3/9 and 1/3.
18/8, 27/12
16/18, 24/27
10/12, 15/18
5/6, 10/12
9/21 & 3/7