I have a doubt that I would like to solve with your help. The 1st solution I have is 10 mg/10 ml from the above solution 1/10th is diluted that should be (0.1) from the above 1/10th diluted solution another 1/10 is diluted again from this once again diluted 1/10th solution 1/5 is again diluted once again from this 1/5th diluted solution 2.5/5 is again diluted. My question is is there any formula to calculate the decimal point. I mean 1/10th is denoted as 0.1th, but how to note multiple diluted solutions? from 1/10 to 1/10 to 1/5 to 2.5/5 Thanking you all in advance for your time and replies.