I would highly recommend the resource book Fabulous Fractions
As the PP mentioned, in it is a WONDERFUL activity that really helps the students to see the equivalent fractions.
I used 10 large craft sticks (popsicle sticks). We lined them all up, long edge to long edge, leaving just a bit of space. We used masking tape, two strips to connect the sticks. (It kind of turns out looking like a ladder, with small spaces.) The first stick, you write out 1-10, spaced evenly. The next stick, 2-20, spaced evenly, matching the numbers on the above stick. (All the first numbers should be lined up, the second numbers on each stick should be lined up, etc.) When you are finished, you have what we called a Math raft. The "raft" can be maneuvered to put different sticks above and below each other, but remaining intact, which is why you want to leave space between each stick. You can use it for equivalent fractions, multiplication, etc. We used it all year long, to be truthful.