idkkk
39/169 = 3/13
13 over 18
9/13
4/13
9/13 x 9/13 is 81/169.
13
I think that's it. 169's only factor (besides itself and 1) is 13 (13 squared is 169). 438 cannot be evenly divided by 13. Then I even put it in my graphing calculator, and it didn't simplify it like it normally would with other things. So I'd say it's 438 over 169.
sqrt(338) = sqrt(2*169) = sqrt(2)*sqrt(169) = 13*sqrt(2)
13/16 is the simplest form.
13/46 is in its simplest form
13/20 is the simplest form.