find the lowest common denominator - Printable Version +- HP Forums ( https://www.hpmuseum.org/forum)+-- Forum: HP Calculators (and very old HP Computers) ( /forum-3.html)+--- Forum: HP Prime ( /forum-5.html)+--- Thread: find the lowest common denominator ( /thread-9938.html) |

find the lowest common denominator - Hamada-77 - 01-15-2018 10:25 AM
hello how can i find the lowest common denominator of two numbers with Hp prime ? thanks RE: find the lowest common denominator - Didier Lachieze - 01-15-2018 12:53 PM
I'm not sure there is a build-in function providing the lowest common denominator. So here is a small program doing that: Code: `EXPORT LCD(N,M)` RE: find the lowest common denominator - Joe Horn - 01-15-2018 12:59 PM
(01-15-2018 12:53 PM)Didier Lachieze Wrote: I'm not sure there is a build-in function providing the lowest common denominator. There is: it's the lcm function (lowest common multiple). In CAS, it works on integers of any length. lcm(12,18) --> 36 1/12+1/18 --> 5/36 It also works on polynomials, not just integers. RE: find the lowest common denominator - Didier Lachieze - 01-15-2018 01:20 PM
Good point, I misunderstood the request as beeing for the lowest common divisor. RE: find the lowest common denominator - john gustaf stebbins - 01-16-2018 12:31 AM
I'm getting to go through this basic math with my kids now. I think the least common divisor can be found with the "1" function. ;^) On the 50g, this was actually function of sort, at least a token so that this commonly used number parsed faster than a number literal. Don't know that they have done the same with the Prime. -jgs |