A fraction becomes 45 if one is added to both numerator and denominator. If, however, 5 is subtracted from numerator and denominator, the resultant fraction becomes 12. Find the fraction.

A fraction becomes 45 if one is added to both numerator and denominato

1.	A fraction becomes 45 if one is added to both numerator and denominator. If, however, 5 is subtracted from numerator and denominator, the resultant fraction becomes 12. Find the fraction.
Answer» A fraction becomes $\frac{4}{5}$ if one is added to both numerator and denominator. If, however, 5 is subtracted from numerator and denominator, the resultant fraction becomes $\frac{1}{2}$ . Find the fraction.