Question

4m^3 over 3m^2n * 9n^2 over 30^2n^2

Answer 1

Interrpretation:

4m^3                 9n^2
----------- *      ---------------  =
3m^2 n          30 m^2 n^2


        4m            3                    4                 2
=   --------- *   ------------ =    ----------- = -------------
        3n           10 m^2         10 n m          5 nm

Answer:

     2
----------
   5nm