2m2 ⋅ 2m3
4m5
4a3 b2 ⋅ 3a-4b-3
12/ab
(2x4 y−3)−1
y3 /2x4
4x0 y−2 z3/ 4x
z3/y2x
4m4n3p3 /3m2 n2 p4
4m2n/3p