Reducing fractions (or equivalent fractions) is part of my oldest boys' fourth grade curriculum. And since he's ahead of the class when it comes to math, I figured I'd give him an introduction at home before they start tackling the topic at school.
To do this, I made a page for him to match equivalent fractions using our pegboard (see how I made our wood and nails pegboard here).
What I love about these pegboard pages, are that they're like multiple choice questions. He has a limited number of answers to choose from so it's not overwhelming and all you need is a nontraditional hole punch and rubberbands to practice an endless amount of skills.
My son did great stringing rubberbands from one nail to another to match the equivalent fractions!