Statement-I       $\frac{-1}{2},\frac{3}{-5}$ are called negative rational numbers.

Statement-II      Every integer is a rational number.

I) A rational number is said to be negative if its numerator and denominator have opposite signs.

II) $\mathrm{....}-1,-2,-1,0,1,2,3,\mathrm{....}$  are called integers and rational numbers. Every integer is a rational number but every rational number need not to be a integer.