Objective: I can find the least common multiple or least common denominator.
One way to find the least common multiple (LCM) is
Step 1: List the multiples of the two numbers.
Step 2: Find the multiples common to both numbers.
Step 3: Select the smallest common multiple.
Read the lesson on least common multiple if you need to learn how to find the lowest common multiple.
We use the least common multiple when adding or subtracting fractions with unlike denominators. It is then called the least common denominator.
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