{"issue":{"state":"open","created_at":"2011-11-24T02:46:31Z","updated_at":"2011-11-24T21:16:15Z","user":{"gravatar_id":"96ea3904626fe17bec2152ee31cee0cd","id":924247,"url":"https://api.github.com/users/KhanBugz","login":"KhanBugz","avatar_url":"https://secure.gravatar.com/avatar/96ea3904626fe17bec2152ee31cee0cd?d=https://a248.e.akamai.net/assets.github.com%2Fimages%2Fgravatars%2Fgravatar-140.png"},"comments":1,"body":"Reporter: R3hall@hotmail.com\n\nI have worked this out several ways, even with a calculator and I get -37/28. The program keeps frowning at me.\n\n[adding_and_subtracting_fractions.html?seed=42&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_and_subtracting_fractions.html?seed=42&problem=0&debug)\n\n[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_and_subtracting_fractions.html?seed=42&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%2237%2F28%5C%22%22%2C131%5D%2C%5B%22incorrect-activity%22%2C%22%5C%221%209%2F28%5C%22%22%2C348%5D%5D)\n\n    [\"37/28\",\"1 9/28\"]\n\nMozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.13) Gecko/20101203 Firefox/3.6.13\n\nMathJax is loaded, ready, queue length: 0\n\n","assignee":null,"id":2336948,"labels":[{"name":"firefox","color":"e102d8","url":"https://api.github.com/repos/Khan/khan-exercises/labels/firefox"},{"name":"snowleo","color":"ededed","url":"https://api.github.com/repos/Khan/khan-exercises/labels/snowleo"},{"name":"wrong-or-unclear","color":"FFA500","url":"https://api.github.com/repos/Khan/khan-exercises/labels/wrong-or-unclear"}],"pull_request":{"patch_url":null,"html_url":null,"diff_url":null},"number":7006,"title":"Adding and subtracting fractions - Wrong answer?","closed_at":null,"html_url":"https://github.com/Khan/khan-exercises/issues/7006","url":"https://api.github.com/repos/Khan/khan-exercises/issues/7006","milestone":null},"action":"created","comment":{"created_at":"2011-11-24T21:16:15Z","updated_at":"2011-11-24T21:16:15Z","user":{"gravatar_id":"ccda242fee83916af1cc610cf288438a","id":438112,"url":"https://api.github.com/users/jceipek","login":"jceipek","avatar_url":"https://secure.gravatar.com/avatar/ccda242fee83916af1cc610cf288438a?d=https://a248.e.akamai.net/assets.github.com%2Fimages%2Fgravatars%2Fgravatar-140.png"},"body":"From the answer timeline, it looks like you typed \"37/28\", which is the inverse of the correct answer, \"-37/28\". I tried entering that as the answer, and it worked for me.","id":2869241,"url":"https://api.github.com/repos/Khan/khan-exercises/issues/comments/2869241"}}