A 1/8 dilution of the stock solution is made followed by a 1/6 dilution. What is the final dilution?
Well, math must follow... what is
A fraction of dilution just tells you what fraction of the original concentration we have just obtained by the addition of solvent. Diluting to whatever fraction of the original concentration gives you that fraction of the starting concentration...
Do fractions of dilution commute? i.e. is