Find the Indicated Quotients $\frac { 18 x ^ { - 4 } y ^ { - 9 } } { 9 x ^ { - 9 } y ^ { - 3 } }$

Short Answer

Find the indicated quotients. Express final results using positive integral exponents only. $\frac { 18 x ^ { - 4 } y ^ { - 9 } } { 9 x ^ { - 9 } y ^ { - 3 } }$ Please enter your answer as a fraction.