X+1/3=5 6/9a. 1/3b. 1 8/9c. 4 1/3d. 5 1/3

x=

D) 5  1/3

Simplify 5 6/9 to 5 2/3. Subtract 1/3 from both sides and you are left with x=5 1/3

So we have a/b>1/2 and c/d>1/2 with the condition that a/b*c/d<1/2

2a>b and 2c>d with 2ac<bd

Let a = 2 and c = 2 so 4>b and 4>d and we have 8<bd

Let b=3 and d=3 then 8<9 which is true.

So 2/3gt1/2 and 2/3gt1/2 and 2/3*2/3=4/9lt1/2 So the answer is 2/3 and 2/3

If they cannot be the same number, then

2/3*3/5=6/15<1/2 So 2/3 and 3/5 work also.