Please help me find the equivalent fractions!

7/9 = 14/18

4/10 = 16/40

3/12 = 9/36

8/10 = 4/5

12/16  = 6/8

18/21 = 6/7

Step-by-step explanation:

7/9 is equivalent to 14/18

4/10 is equivalent to 16/40

3/12 is equivalent to 2/8

8/10 is equivalent to 4/5

12/16 is equivalent to 6/8

18/21 is equivalent to 6/8

explanation:

previous steps have made pa≅ pb ≅ st ≅ su. setting the compass width to ab allows you to make tu the same length. then δstu ≅ δpab by the sss congruence postulate, and ∠p ≅ ∠s by the reason cpctc.