Possible derivation:
d/dx(3)
The derivative of 3 is zero:
Answer: = 0
Hmm, this answer is mathematically incorrect. If the question has no errors, 38 can go into 7 0 times, it can't because its bigger than 7.
However, if it were meant to be the other way round, how many times does 7 go into 38, the answer would be 5.
1/6 + 1/12 = 1/4
If you need me to explain how I got the answer I am more than happy!
I hope this helps!
In order to answer this question I need to see a diagram. Do you have one?