Write 3a^2 b^2 c^5 / 8x^4 y^3 z using no denominator

Currently the denominator is .  If you want to move those up so they sit with the numerator, then what you have to do is make the exponents negative.  You make a negative exponent positive by moving it under a 1; undo that process to make the exponents negative.  If we do that, then the expression would be

Figure it out your self