Results 1 to 5 of 5

Math Help - Divide Frac by whole numb 2

  1. #1
    Junior Member
    Joined
    Jan 2007
    Posts
    33

    Divide Frac by whole numb 2

    Another Fraction divided by whole number. My answer is 54 but somehow I doubt that's right.

    Question
    2 1/3 : 18 = ?

    2 1/3 2x3= 6 + 1 = 7
    7/3 : 18 = 7/3 : 18/1 = 0/3 x 1/18 = 0/54
    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
    Another Fraction divided by whole number. My answer is 54 but somehow I doubt that's right.

    Question
    2 1/3 : 18 = ?

    2 1/3 2x3= 6 + 1 = 7
    7/3 : 18 = 7/3 : 18/1 = 0/3 x 1/18 = 0/54
    where'd the 0/3 come from?

    remember the lesson learned here http://www.mathhelpforum.com/math-he...hole-numb.html

    (2 1/3)/ 18 = (7/3)/(18/1) = (7/3)*(1/18) = 7/54
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Member
    Joined
    Apr 2008
    Posts
    204
    Quote Originally Posted by radioflyer01 View Post
    Another Fraction divided by whole number. My answer is 54 but somehow I doubt that's right.

    Question
    2 1/3 : 18 = ?

    2 1/3 2x3= 6 + 1 = 7
    7/3 : 18 = 7/3 : 18/1 = 0/3 x 1/18 = 0/54
     <br />
2\frac{1}{3} \div 18<br />
= \frac{7}{3} \div \frac{18}{1}<br />
= \frac{7}{3} \times \frac{1}{18}<br />
= \frac{7\times1}{3\times18}<br />
= \frac{7}{54}<br />
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Newbie
    Joined
    Apr 2009
    From
    NYC
    Posts
    2

    Smile 42

    Hmm...I think it's 42. Just reply and I'll explain for you if you like
    Follow Math Help Forum on Facebook and Google+

  5. #5
    Newbie
    Joined
    Apr 2009
    From
    NYC
    Posts
    2

    Red face Oops, did the earlier one wrong. -.-

    Quote Originally Posted by radioflyer01 View Post
    Another Fraction divided by whole number. My answer is 54 but somehow I doubt that's right.

    Question
    2 1/3 : 18 = ?

    2 1/3 2x3= 6 + 1 = 7
    7/3 : 18 = 7/3 : 18/1 = 0/3 x 1/18 = 0/54
    I decided to explain anyway. And I found I did the one earlier wrong. -.- sorry about that. lol, this is how I did it:
    Convert 2 1/3 into an irregular fraction:
    7/3
    Convert 18 into a fraction:
    18/1
    Change division to multiplication and use the reciprocal of 18/1 (flip it around):
    7/3 X 1/18=7/54
    Yeah, so it's 7/54.
    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. Replies: 2
    Last Post: September 14th 2008, 12:14 PM
  5. Divide Frac by whole numb
    Posted in the Algebra Forum
    Replies: 4
    Last Post: March 28th 2007, 09:22 PM

Search Tags


/mathhelpforum @mathhelpforum