Results 1 to 3 of 3

Math Help - hard fraction

  1. #1
    Super Member
    Joined
    Oct 2008
    From
    Bristol, England
    Posts
    897

    hard fraction

    hi,
    how would i work this out, hard fraction-fraction.jpg
    would i do:
    hard fraction-fraction-2.jpg
    = hard fraction-fraction-3.jpg

    but what do i do after this?
    Last edited by andyboy179; December 10th 2010 at 08:39 AM.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Junior Member BariMutation's Avatar
    Joined
    Dec 2010
    From
    I'm omnipresent
    Posts
    30
    To subtract ANY two fractions, you don't need a common denominator. Yes, it helps, but it's not needed. What I would do is this;

    Multiply the numerator of the first one and the denominator of the second one. Now multiply the denominator of the first one and the numerator of the second one. Subtract these two values, and this will be the numerator of the answer. For the denominator of the answer, simply multiply the two denominators together. So, in essence;

    a/b - c/d = (ad - bc)/(bd)

    It looks complicated, but take this example;

    5/6 - 7/9 = (45 - 42)/54
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Super Member
    Joined
    Oct 2008
    From
    Bristol, England
    Posts
    897
    ok i know what to do now, thanks!!!
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. hard fraction!
    Posted in the Algebra Forum
    Replies: 24
    Last Post: February 19th 2011, 01:51 AM
  2. hard fraction
    Posted in the Algebra Forum
    Replies: 62
    Last Post: November 23rd 2010, 07:08 AM
  3. hard fraction
    Posted in the Math Topics Forum
    Replies: 2
    Last Post: February 5th 2010, 07:04 AM
  4. really hard fraction question HELP
    Posted in the Math Topics Forum
    Replies: 9
    Last Post: December 18th 2009, 08:02 AM
  5. fraction hard!
    Posted in the Algebra Forum
    Replies: 10
    Last Post: September 11th 2009, 07:23 AM

Search Tags


/mathhelpforum @mathhelpforum