This common core aligned math activity is a great way for students to practice finding the least common multiple as well as solving addition and subtraction problems that require students to find a common denominator. Students try to accumulate a complete set of three cards one each of "L" "C" and "M" by finding the least common multiple, solving addition and subtraction fraction problems, and simplifying the answers. This is a great center activity or a wrap up to a least common multiple lesson. Download includes: 24 cards (with letters "L" "C" "M" on one side and fraction problems on the other), answer key, and directions. After printing the cards they must be glued together so the letter is on the front and the fraction is on the back).
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