If 3 is added to the denominator of a fraction, it becomes 1/3 and if 4 be added to its numerator, It becomes 3/4, then fraction is ?

If 3 is added to the denominator of a fraction, it becomes 1/3 and

1.	If 3 is added to the denominator of a fraction, it becomes 1/3 and if 4 be added to its numerator, It becomes 3/4, then fraction is ?
A.	5/12
B.	3/20
C.	1/16
D.	None of the above
Answer» B. 3/20