Results 1 to 5 of 5

Math Help - Divide Frac by whole numb

  1. #1
    Junior Member
    Joined
    Jan 2007
    Posts
    33

    Divide Frac by whole numb

    4 3/5 divided by 5 please solve and explain how it was done.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    is up to his old tricks again! Jhevon's Avatar
    Joined
    Feb 2007
    From
    New York, USA
    Posts
    11,663
    Thanks
    3
    Quote Originally Posted by radioflyer01 View Post
    4 3/5 divided by 5 please solve and explain how it was done.
    ok, when we are dividing fractions, what we do is that we take the inverse of the fraction on the bottom (meaning i just flip it upside down) and multiply it by the top, and that's our solution

    e.g. (2/3) / (4/5) = (2/3) * (5/4) = 5/6

    when dividing by whole numbers, its the same principle. think of any whole number as itself over 1. so think of 5 as 5/1, or 9 as 9/1, so

    e.g. (2/3) / 9 = (2/3) / (9/1) = (2/3) * (1/9) = 2/27

    now to your problem. the first thing we have to do is change 4 3/5 to an improper fraction (i hope you know how to do that), the result is 23/5

    so now, (23/5) / 5 = (23/5) / (5/1) = (23/5)*(1/5) = 23/25
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Junior Member
    Joined
    Jan 2007
    Posts
    33
    Yes, I just forgot.
    Thanks.
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Global Moderator

    Joined
    Nov 2005
    From
    New York City
    Posts
    10,616
    Thanks
    10
    Quote Originally Posted by radioflyer01 View Post
    4 3/5 divided by 5 please solve and explain how it was done.
    4 3/5 = 23/5 as an improer fraction.

    Thus,

    23/5 divided by 5/1 = 23/5 x 1/5 = (23 x 1)/(5 x 5)=23/25
    Follow Math Help Forum on Facebook and Google+

  5. #5
    Junior Member
    Joined
    Jan 2007
    Posts
    33
    Thanks.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 6
    Last Post: March 26th 2011, 07:05 AM
  2. [SOLVED] P(A)=\frac{n(A)}{n}
    Posted in the Advanced Statistics Forum
    Replies: 1
    Last Post: January 25th 2011, 01:44 PM
  3. [SOLVED] arg(z)=\frac{\pi}{4}
    Posted in the Pre-Calculus Forum
    Replies: 3
    Last Post: September 5th 2010, 05:50 PM
  4. Divide Frac by whole numb 2
    Posted in the Algebra Forum
    Replies: 4
    Last Post: April 29th 2009, 01:41 PM
  5. Replies: 2
    Last Post: September 14th 2008, 12:14 PM

Search Tags


/mathhelpforum @mathhelpforum