working with fractions


Hello, just wondering if there was an way to simplfy fractions, for example 34/21 or 8/2, and ideas?? I always thought calculators were meant to make things easier??


Also is there a way of entering fractions along the lines of 3/4/8 (three and four eigths) or -5/9/10 ( negative 5 and nine tenths)


On the HP33S the decimal point serves to delineate the whole number and fractions on entry. See the lessons below.


On the HP33S the decimal point serves to delineate the whole number and fractions on entry. See the lessons below.

Both the HP-32SII and HP-33S are the only (RPN-based, at least) HP models that have this capability. It's actually quite good, in that the closest fractional approximation (having a denominator no greater than 4096) to a floating-point value can be produced.

-- KS


The HP41C, CV, CX with the PPC ROM allows you to work with fractions. I believe that with the HP15C you are out of luck. Sorry Karl.

Regards, Thor


sorry I forgot to mention im using the HP 50g, thanks for the reply though


Hi Dan, the HP 50g can indeed do fractions. Do do what I presume you want to do, first set the calculator to symbolic mode (Press the "MODE" key, select "CAS", and have both "Numeric" and "Approx" unchecked). A simple example (in RPN, but works analogously in algebraic): 10 ENTER 6 Divide --> '5/3'. 7 ENTER 12 Divide --> '7/12', then Add --> '5/3 + 7/12'. Press EVAL yields '9/4'. For further information see also the User's Guide, pages 5-23 ff.

I hope this helps. Good luck and best regards.


Dan, I just remembered that HP has a training module on fractions for the HP 50g, here it is:

I think this explains things well. There is quite a number of other training modules as well, I found them very helpful.

Best regards again. Chris.

Possibly Related Threads...
Thread Author Replies Views Last Post
  HP Prime Save Power Turn Off Not Working Timothy Roche 12 2,365 10-27-2013, 01:41 PM
Last Post: Michael de Estrada
  Temporary User Mode Key Programs not working in RPN BruceTTT 7 1,573 10-14-2013, 01:46 PM
Last Post: BruceTTT
  Egyptian Fractions on the WP-34s. Just for the heck of it. Marcel Samek 13 2,231 04-03-2013, 05:31 PM
Last Post: Paul Dale
  HP-97 suddenly not working Brad Barton 10 1,685 02-25-2013, 08:15 PM
Last Post: Brad Barton
  [41CL] Problem with PowerCL ... not working Doug (NYC) 5 1,179 01-22-2013, 07:18 PM
Last Post: Doug (NYC)
  42S exit key not working dwsmith 4 1,045 11-05-2012, 10:59 AM
Last Post: dwsmith
  HP-46 not working Ignacio Sánchez 1 634 10-24-2012, 11:17 AM
Last Post: Donald Williams
  [WP34s] last QtGui version not working fhub 8 1,448 08-31-2012, 05:08 PM
Last Post: fhub
  Modfile not working with Win 7 x64 Richard Wagoner 6 1,413 07-04-2012, 10:32 PM
Last Post: Diego Diaz.
  Working on HP's again Les Koller 49 6,921 06-20-2012, 01:29 AM
Last Post: Thomas Radtke

Forum Jump: