# Help! I am writing a DIY. I need to know how to figure out how many 9"x9" is in

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Kenna McHughposted 22 months ago

Help! I am writing a DIY. I need to know how to figure out how many 9"x9" is in 20"x90".

I am not good at this type of math and would appreciate the formula for determining how many 20" by 90" of Misty Fuse I need to make 12 - 9"x9".

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tsmogposted 22 months ago

A 20" x 90" piece of fabric can make 18 9" x 9" pieces. The way it is done is divide the 90" length by 9", which equals 10. Then divide the 20" by 9", which equals 2 with 2" left over. Multiply 2 x 9 = 18.

A consideration is if it has to be exactly 9". When doing the squares along the length the width of the scissor cut will cause the last square to be a 'little less' than 9". But, you only need 12, so there will be plenty to choose from.

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lisavollrathposted 22 months agoin reply to this

The correct answer is 20. It's 10x2, not 9x2.

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Kenna McHughposted 22 months agoin reply to this

Lisa, but still there will be at least 12 - 9x9, right? #mathismyblindspot

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tsmogposted 22 months agoin reply to this

Thanks for the correction Lisa.

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Kenna McHughposted 22 months ago

Tim, thank you. This is very helpful. This puts my mind at ease.

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