Hi Stuart.
Let's first check the arithmetic:
So your calculation is correct. Now let's think about the interpretation of this calculation.
You can make 17 pieces and ^{22 }/_{37 } of a piece.
So how long is ^{22 }/_{37 } of a piece that is 3 ^{1 }/_{12 } long?
Hope this helps!
Stephen La Rocque.
