#color(green)(27)^ (color(blue)(1)/color(red)(3))# is the same as #color(white)()^color(red)(3)sqrt(27^color(blue)(1))#. To write an exponent in radical form , the denominator, or index goes in front of the radical, and the numerator goes inside of the radical. We raise the base to the power of the numerator
#color(green)(4)^(color(blue)(3)/color(red)(2))# is the same as #sqrt(color(green)(4)^color(blue)(3))# or
#sqrt(64)#
#sqrt(8*8)#
#cancelsqrt(8^cancel2)#
#8#