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wu :: forums    riddles    easy (Moderators: william wu, ThudnBlunder, SMQ, towr, Eigenray, Grimbal, Icarus)    Fracking Fractions « Previous topic | Next topic » Pages: 1  Reply Notify of replies Send Topic Print    Author  Topic: Fracking Fractions  (Read 3019 times) Noke Lieu Uberpuzzler pen... paper... let's go! (and bit of plastic)     Gender: Posts: 1884 Fracking Fractions   « on: May 7th, 2012, 9:00pm » Quote Modify [(A+B)/C] + [(D+E)/F] + [(G+H)/I] = J   Place the numbers 1-10 in A-J such that it's true.   Is it possible? IP Logged a shade of wit and the art of farce. towr wu::riddles Moderator Uberpuzzler Some people are average, some are just mean.     Gender: Posts: 13730 Re: Fracking Fractions   « Reply #1 on: May 7th, 2012, 11:00pm » Quote Modify Are you using [] as parentheses, or do they have an extra meaning such as round/ceil/floor/fractional part ? IP Logged Wikipedia, Google, Mathworld, Integer sequence DB Noke Lieu Uberpuzzler pen... paper... let's go! (and bit of plastic)     Gender: Posts: 1884 Re: Fracking Fractions   « Reply #2 on: May 8th, 2012, 3:54am » Quote Modify Oh, just parentheses.   I was trying to avoid confusion, but couldn't be bothered making a picture... IP Logged a shade of wit and the art of farce. pex Uberpuzzler     Gender: Posts: 880 Re: Fracking Fractions   fracking-fractions.txt « Reply #3 on: May 8th, 2012, 4:17am » Quote Modify There's actually quite a long list of solutions... Were you looking for anything in particular? IP Logged JohanC Senior Riddler     Posts: 460 Re: Fracking Fractions   « Reply #4 on: May 8th, 2012, 1:53pm » Quote Modify on May 8th, 2012, 4:17am, pex wrote: Were you looking for anything in particular? Maybe: - let the 3 denominators be primes - or: let the sum of the denominators be as large as possible - or: make sure none of the 3 fractions evalutes to an integer - or: ... IP Logged Noke Lieu Uberpuzzler pen... paper... let's go! (and bit of plastic)     Gender: Posts: 1884 Re: Fracking Fractions   « Reply #5 on: May 8th, 2012, 6:33pm » Quote Modify No, no- it was just a classroom activity that I came up with. Easy with computer grunt, less so without. IP Logged a shade of wit and the art of farce. Pages: 1  Reply Notify of replies Send Topic Print Forum Jump: ----------------------------- riddles -----------------------------=> easy   - medium   - hard   - what am i   - what happened   - microsoft   - cs   - putnam exam (pure math)   - suggestions, help, and FAQ   - general problem-solving / chatting / whatever ----------------------------- general -----------------------------  - guestbook   - truth   - complex analysis   - wanted   - psychology   - chinese « Previous topic | Next topic »

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