Write the rational number whose numerator is 4?(-7) and denominator is (3-7)?(15-11).

Dear Student!

numerator= 4*(-7) = -28
denominator = (3-7)*(15-11)
                     = (-4)*4 = -16
=> rational number is -------   (numerator)/(denominator)
                                             =(-28)/(-16)
                                             = 28/16
                                             = 7/4

Regards