Results 1 to 4 of 4

Thread: Help with dividing with decimals

  1. #1

    Help with dividing with decimals

    Hello everyone,

    I am stuck on a "percent difference" problem where I have the following:

    (2.75 - 2.25) / 2.75 then multiplying by 100.

    Doing this long hand, I got:

    0.50 / 2.75

    I then took away the decimal to do 050 into 275, which = 55.
    Adding the decimal back in, I got 5.5. 5.5 * 100 = 550.

    I confirmed this with an online long division calculator.
    But when I use Symbolab or a regular calculator, it comes to
    0.1818 * 100 = 18.18.

    What am I doing wrong?
    Attached Images Attached Images

  2. #2
    Elite Member
    Join Date
    Jun 2007
    Posts
    17,062
    Quote Originally Posted by Shadowboxer18 View Post
    Hello everyone,

    I am stuck on a "percent difference" problem where I have the following:

    (2.75 - 2.25) / 2.75 then multiplying by 100.

    Doing this long hand, I got:

    0.50 / 2.75

    I then took away the decimal to do 050 into 275, which = 55.... Incorrect

    .50/2.75 (= 0.5 divided by 2.75) = 0.1818


    Adding the decimal back in, I got 5.5. 5.5 * 100 = 550.

    I confirmed this with an online long division calculator.
    But when I use Symbolab or a regular calculator, it comes to
    0.1818 * 100 = 18.18.

    What am I doing wrong?
    .
    “... mathematics is only the art of saying the same thing in different words” - B. Russell

  3. #3
    Elite Member
    Join Date
    Feb 2004
    Location
    Ottawa, Ontario
    Posts
    16,656
    Quote Originally Posted by Shadowboxer18 View Post
    I then took away the decimal to do 050 into 275, which = 55.
    Should be "to do 275 into 50"
    I'm just an imagination of your figment !

  4. #4
    *facepalm*
    Thank you guys so very much.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •