Results 1 to 6 of 6

Math Help - Adding feet and inches.

  1. #1
    Newbie
    Joined
    Jul 2010
    Posts
    3

    Adding feet and inches.

    How to add
    Q1: 10' feets + 4 1/2" inches + 5 2/3" inches
    Q2: 5' feets + 20' feets + 5 2/3" inches
    Last edited by mr fantastic; July 23rd 2010 at 07:55 PM. Reason: Re-titled, clarified each question by adding Q and :
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Junior Member
    Joined
    Jun 2009
    Posts
    68
    Are you having trouble with adding fractions, with unit conversion, or with something else? Show us what you've done and where you're getting stuck.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Jul 2010
    Posts
    3
    could some one show me the steps of a solution
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by tmbt View Post
    could some one show me the steps of a solution
    Please answer the questions raised in post #2. Thankyou.
    Follow Math Help Forum on Facebook and Google+

  5. #5
    Newbie
    Joined
    Jul 2010
    Posts
    3
    I'm having trouble with adding fractions, with unit conversion.
    Follow Math Help Forum on Facebook and Google+

  6. #6
    MHF Contributor

    Joined
    Apr 2005
    Posts
    16,418
    Thanks
    1854
    To add fractions, you get a common denominator. To add measurements with different units you get common units.

    Q1: 10' feets + 4 1/2" inches + 5 2/3" inches
    I recommend you change every thing to feet: 10' is 120 inches so this is
    120+ 4 1/2+ 5 2/3.

    Now since one denominator is 2 and the other 3 (and you get equivalent fractions by multiplying numerator and denominator by the same thing) the "common denominator" is 2*3= 6. If you multiply numerator and denominator of 1/2 by 3, you get 3/6. If you multiply numerator and denominator of 2/3 by 2 you get 4/6. 1/2+ 2/3= 3/6+4/6= 7/6= 1 1/6.

    (English lesson: "feet" is already the plural of "foot"- you don't need the additional "s". In fact, the symbol ' after the number means feet and the symbol " after the number means inches- you don't need both.
    Use either "10 feet + 4 1/2 inches + 5 2/3 inches" or "10'+ 4 1/2"+ 5 2/3" ".)
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 2
    Last Post: February 16th 2010, 05:45 PM
  2. Prob that 2 or more people are over 74 inches
    Posted in the Advanced Statistics Forum
    Replies: 1
    Last Post: November 4th 2009, 05:45 PM
  3. Replies: 1
    Last Post: January 12th 2009, 04:44 PM
  4. how many square inches
    Posted in the Algebra Forum
    Replies: 3
    Last Post: November 4th 2008, 05:31 PM
  5. Square inches
    Posted in the Geometry Forum
    Replies: 3
    Last Post: October 29th 2008, 07:29 PM

Search Tags


/mathhelpforum @mathhelpforum