To find how many pieces, divide 18 by 3/4
Lets represent:
x=pieces of sticks
18 in=[tex]\frac{3 in}{4}x[/tex]
Multiply both sides by 4
72 in=3 inx
Divide both sides by 3 in
24=x
Therefore there are 24 pieces that can be cut in an 18-inch stick. Hope this helps =)