I have tried and from what I can tell, it is mathematically impossible.
To find approximations of square roots, you should find the nearest prefect square. For example if your looking to approximate the square rot of 10, the closest perfect square is 9 and the square root of that is three. Thus, you can say that the square root is about 3. Hope this helps and please mark brainiest. :D
1/4+5/12=3/12+5/12=8/12=4/6=2/3
they painted 2/3 of the fence