I don't know why the math is such a struggle for me, but it is.

I am trying to add borders to this quilt. Because the borders are so wide, I can't afford to make the borders "wavy". (My LA gets very cranky).

The body width is 69 1/2 inches. I've added 8 1/2 inches borders to each side. Now I'm ready to measure and cut the other 2 sides of my square quilt.

How long do I make the new borders? My instinct is to add 69 1/2" plus 17" minus 1/2". Is that right?

Please help!

Thanks!