Let's take a quick refresher on least common multiples (LCM). We'll walk through an example together. Then, you'll see eight pairs of numbers. For each pair, try to determine their LCM by listing multiples of each number.
Teaching kids about the Least Common Multiple (LCM) provides them with foundational knowledge for more advanced mathematics, particularly in dealing with fractions, ratios, and proportions. It's crucial in problem-solving situations to find common denominators to add, subtract, or compare fractions.
Let's break down the process of finding the least common multiple (LCM) of the numbers 4 and 8. We start by listing the multiples of each number. The multiples of a number are what you get when you multiply that number by 1, 2, 3, and so on. For 4, the first few multiples are 4, 8, 12, 16, etc. For 8, the first few multiples are 8, 16, 24, etc. The least common multiple is the smallest number that appears in both lists of multiples. In this case, the number 8 is the first number you find that both lists have in common. So, the LCM of 4 and 8 is 8.