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Thread: Help with Math Please

  1. #1
    Super Member bailey's Avatar
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    OK, I am really math challenged this morning. If anyone could help I would be so grateful.
    My center that I am working on is 64 1/2 inches square. I am wanting to add a narrow border to that and then add another border that measures 6 1/2 inches unfinished squares.

    How wide a border do I need to add to the existing center for the 6 1/2 inch border to work out evenly? I have been drawing this and trying to figure it out all morning. Guess I need more coffee!

    Thanks for any help.

  2. #2
    Senior Member OdessaQuilts's Avatar
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    Quote Originally Posted by bailey
    OK, I am really math challenged this morning. If anyone could help I would be so grateful.
    My center that I am working on is 64 1/2 inches square. I am wanting to add a narrow border to that and then add another border that measures 6 1/2 inches unfinished squares.

    How wide a border do I need to add to the existing center for the 6 1/2 inch border to work out evenly? I have been drawing this and trying to figure it out all morning. Guess I need more coffee!

    Thanks for any help.
    If I understand your problem, you would add a 2-1/2" strip to your center. That should make your center 66-1/2" square, which will finish down to 66" square. That way, you can put 11 squares of 6" (finished size) along each side. If you do two opposite sides first, then you would need 11 blocks on each, and 13 blocks on each of the other two sides (i.e., if you don't you'll have "holes" at the corners).

    HTH,

    Odessa

  3. #3
    Super Member bailey's Avatar
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    The center now measures 64 1/2 inches - I have a bunch of 6 1/2 inch (unfinished ) squares that I want to use as the last border. I need to add a narrow border all the way around the 64 1/2 " center to make this work. If I add 2 1/2 inch border all the way around wouldn't I then have 67 1/2 inch center? Oh, you can see why I am having so much trouble - I just can't figure this out today.

  4. #4
    Power Poster Sadiemae's Avatar
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    If you can't figure it out, I would just start sewing my squares together. When they are the length you want them, then I would figure out what size border I need before attaching them. I am very visual and this would be much easier if I were doing it.

  5. #5
    Super Member dvseals's Avatar
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    Quote Originally Posted by bailey
    The center now measures 64 1/2 inches - I have a bunch of 6 1/2 inch (unfinished ) squares that I want to use as the last border. I need to add a narrow border all the way around the 64 1/2 " center to make this work. If I add 2 1/2 inch border all the way around wouldn't I then have 67 1/2 inch center? Oh, you can see why I am having so much trouble - I just can't figure this out today.
    64 1/2 + 2 1/2 = 67 - 1/2 (seam allowances) = 66 1/2 square

  6. #6
    Super Member bailey's Avatar
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    Thank you all so much!!! Could never figure out the train thing either... If a train is travelling east at 65 MPH...............LOL

  7. #7
    Super Member Scissor Queen's Avatar
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    Quote Originally Posted by bailey
    Thank you all so much!!! Could never figure out the train thing either... If a train is travelling east at 65 MPH...............LOL

    It travels the distance of one mile in 55 seconds. LOL

  8. #8
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    my dream while I am still alive is know the formula for the train and its speed.

  9. #9
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    perhaps part of your difficulty is looking at the unfinished size of the center. It will finish at 64"
    11 of your 6" (finished squares) will be 66" The difference is 2" finished inner border. So the posts above are correct in suggesting 2 1/2 inch cut strip for your inner border. Be sure you measure the center down the center to make sure it is square so the inner border will keep it in the square.

  10. #10
    Super Member bailey's Avatar
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    Thank you all, had to go out (which was probably a good thing) and now I will give this a go.

    Thank you all for your help.

  11. #11
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    if the center finishes at 64, a 2.5 strip on each side will increase the size by 4", not just 2". AM I missing something?

  12. #12
    Super Member dvseals's Avatar
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    Quote Originally Posted by quilt crazee
    if the center finishes at 64, a 2.5 strip on each side will increase the size by 4", not just 2". AM I missing something?
    You're right, it would increase it by 4" each way.


    So instead of 2.5" border you'd need 1.5" border
    which would then add 1" to top/bottom and each side resulting in a 66.5" unfinished center

  13. #13
    Super Member bailey's Avatar
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    Thanks everyone - I guess I have a choice...LOL Going to work on this in the morning and see what happens. Here is a sneak at one of the blocks that will be added after this border. Working at this backwards - I have the next border done before the one I can't figure out the size. Horse after the cart kind of thing.......... Some of you may remember me posting the WIP so you will know what quilt center it is being added to.
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