Answer:
6x+y/3x-2y
Explanation:
30mx + 5my +18nx +3ny
----------------------------------
15nx -10my + 9nx - 6ny
taking each first, then simplifying
30mx + 5my +18nx +3ny
5m(6x+y)+3n(6x+y) = (5m+3n)(6x+y)
15mx -10my + 9nx - 6ny
5m(3x-2y)+3n(3x-2y)
(5m+3n)(3x-2y)
30mx + 5my +18nx +3ny
---------------------------------- = {(5m+3n)(6x+y)}/{(5m+3n)(3x-2y)}
15nx -10my + 9nx - 6ny
(5m+3n) cancels itself up and down
Remaining 6x+y/3x-2y