32 2/5 ÷ 2 7/10
let's turn above into improper fractions:
32 2/5 ----> 162/5
2 7/10 -----> 27/10
so,
162/5 ÷ 27/10 -------> 162/5 * 10/27 = 12 necklaces
The distance between the two is 10
An imaginary line would need to be drawn at any angle to the center of the side opposite the angle to reflect across an axis of symmetry so that a regular pentagon can carry onto itself.
