4 2 9 6 1 3 * d July 8, 2019 16 32 64 128 4 2 9 divided by 3 1 6 4 2 9 6 1 3 times d 4 2 9 divided by 6 1 3 in fraction form 3 etil-2 4 9-trimetil-6-(1-metilpropil)decano 4 6-9 2= 4 6-9 4=
