Math Whizs please reply

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Hi!

I am taking a 4 day seminar at my nursing school to give us a step up on math medications. I am not a math whiz by any stretch of imagination. I am finally understanding fractions. I can do multiplication of decimals. I can do the work of the division of the fractions but I cannot get where to put the decimals. I know that I need to have the answers in tenths or hundredths but my answer is wrong because I add the decimal in the wrong spot.

Can someone give my a hint or website to give me the rules for dividing fractions with adding the decimals to the answers?

Thanks!

Tracy

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you move the decimal at the start of the problem, let's see if I can type it in.

Let's say 25.5 divided by 0.5. change that to 255 divided by 5, you moved each decimal place over one so that you could make 0.5 into a whole number, no decimal.

Now let's do 25.5 divided by 0.005, you move the decimal place over three places on both numbers, and get 25500 divided by 5.

Hope that helps, Donna

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Specializes in NICU, Infection Control.
https://allnurses.com/forums/f198/math-help-links-120539.html
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Thanks - what I am dividing does not have any decimal points to start. I am adding the decimal after I am done to show a number in the tenths and hundredths spot.

All the number are in fractions with decimals and I take away the decimals to divide. Then I add the decimal back into the answer. I am unsure where to put the decimal.

Tracy

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Specializes in Surgical/MedSurg/Oncology/Hospice.

I highly recommend the book "Math for Meds" by Curren. It's a great review of the basics (+,-,X, decimals, ect) all the way up through dosage calculations and IV flow rates. Each chapter includes simple explanations along with plenty of practice problems, and each chapter ends with a good sized review test of what you learned.

I hadn't had a math class in over 8 yrs when I took this class while waiting to get accepted to NS, and I'm starting the nursing program in August...and this book is on the "recommended" list of books. Glad I kept it!;)

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I found http://www.aaamath.com a really helpful website, it gives really simple explainations and helpful practice problems...

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