A fraction becomes \(\frac{1}{2}\) if 2 is added to the numerator and 5 is added to the denominator. It also becomes \(\frac{1}{3}\) if 2 is subtracted from both the numerator and denominator. Then the fraction is
1
\(\frac{3}{5}\)
2
\(\frac{1}{7}\)
3
\(\frac{8}{15}\)
4
\(\frac{4}{17}\)