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How do I do the math on this one??

How do I do the math on this one??

Old 09-03-2012, 03:45 PM
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Default How do I do the math on this one??

I need to make 20 squares made from two triangles. The finished square is to be 1 5/8 inches by 1 5/8 inches. I would like to make it the fast way using two squares that are sewn together and then cut apart. My problem is trying to figure out what size the squares that I cut apart should be. Most charts don't go that small . I hear you just muiltiply by .64 but how do you do that with a number like 1 5/8?? Can any math whiz help me??
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Old 09-03-2012, 04:14 PM
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So sorry; I am not the math whiz you are looking for! Good luck, however.
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Old 09-03-2012, 04:17 PM
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http://www.patchwork-and-quilting.co...triangles.html
http://www.karencombs.com/formulas_for_quilters.htm
I'm assuming you need half square triangles
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Old 09-03-2012, 04:21 PM
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Thanks! Looks like I make 2.5 inch squares!
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Old 09-04-2012, 03:50 AM
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It's probably not the correct way, but I when I cut the squares I just add 1" to the size I want it to end up ( 1 5/8 plus 1 = 2 5/8 ), then trim the HST back down. I hate fractions, can't you tell?
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Old 09-04-2012, 03:53 AM
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Originally Posted by TwinRiverFarm View Post
It's probably not the correct way, but I when I cut the squares I just add 1" to the size I want it to end up ( 1 5/8 plus 1 = 2 5/8 ), then trim the HST back down. I hate fractions, can't you tell?
Right there with you! Not sure if it's my cutting or stitching that's always off, but this way I get near perfect HST's. Takes a bit longer but much better results.
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Old 09-04-2012, 05:13 AM
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Good idea. Give myself a little insurance. This is for a 12 Days of Christmas Wall hanging, so the squares would be very visable.
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Old 09-04-2012, 11:40 AM
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Here are charts to help you, I love the bottom one to make 8 hst's at once!
Attached Files
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Old 09-04-2012, 11:55 AM
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Originally Posted by Gennynut View Post
Thanks! Looks like I make 2.5 inch squares!
Yep. For 1/2 square triangles, add 5/8 to your finished measurement and cut that size. Multiplying by a number (like .64) will NOT work correctly.

1 5/8 + 7/8 = 1 12/8 = 2 4/8 = 2 1/2
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Old 09-05-2012, 06:50 AM
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I found out that I love cutting down triangles. I took an online class and she had us do that and it was so nice and ever since then, I make my HST a little bigger than suppose to be and cut them down. Love it!
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