(A*b*c)^4*3/(b*c)^3*b^3/27a^5
(A*b*c)^4*3/(b*c)^3*b^3/27a^5 So we have, taking it in steps.......
[A4b4c4]*[3] /[b3c3] = 3[A4bc]
3[A4bc]*[b3] = 3[A4b4c]
3[A4b4c] / [27a5 ] =
[A4b4c] / [9a5 ]