Let the two rational numbers be x and y
As we know that between two rational numbers x and y where x < y there is a rational number \(\frac{(x+y)}{2}\)
= x < (x+y)/2 < y
= (-3+1)/2
= -2/2
= -1
Hence, the rational number between -3 and 1 is -1
∴ -3 < -1 < 1