Answer: 0.001
Because the numerator and denominator both have 4 as a term, they can cancel each other out. This leaves the fraction as
. When dividing terms with exponents, the exponents should be subtracted. -6-(-3)=-3. Because the term is
, it needs to be changed into a fraction, so the exponent is positive. This would equal
. This equals 1/1000, which is 0.001.