Answer :

1/3 ,4/12.5/15,7/21,10/30,8/24,12/26 .Just to name a few

A brief explanation of this would be you are taking 1/3 of all numbers so there 5 right ,5 times 3 is 15 and you go on and on!!!!An 15 becomes you denomenator and 5 is  your numerator.
2/6 is equivalent to 1/3 because if you divide 2 divide by 2 you will get 1 and if you divide 2 divided by 6 it will equal 3 so then your answer will be 1/3
                                  !!!!HOPE I HELPED YOU!!!!