Solve the following problems by finding the LCM and comparing fractions. 22. A quality control inspector in an egg factory checks every forty-eighth egg for cracks and every fifty-fourth egg for weight. What is the number of the first egg each day that the inspector checks for both qualities? 3. A stock sold for \( 3 \frac{5}{8} \) one day and \( 3 \frac{1}{2} \) the next. Did the value of the stock go up or down? Explain. Marissa needs \( 2 \frac{2}{3} \) yards of ribbon for a wall-hanging she wants to mak She has \( 2 \frac{3}{4} \) yards. Does she have enough ribbon? Explain.
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To find the first egg that the inspector checks for both qualities, we need to determine the least common multiple (LCM) of 48 and 54. The prime factorization gives us 48 = \( 2^4 \times 3^1 \) and 54 = \( 2^1 \times 3^3 \). To find the LCM, we take the highest power of each prime: \( 2^4 \) and \( 3^3 \). Thus, the LCM is \( 2^4 \times 3^3 = 16 \times 27 = 432 \). The inspector checks the first egg at number 432! Comparing the stock prices, start by converting them to improper fractions for better comparison. \( 3 \frac{5}{8} = \frac{29}{8} \) and \( 3 \frac{1}{2} = \frac{7}{2} = \frac{28}{8} \). Since \( \frac{29}{8} > \frac{28}{8} \), the value of the stock actually went up from the first day to the second. Going up for the win! Now about Marissa's ribbon! She needs \( 2 \frac{2}{3} \) yards, which is \( \frac{8}{3} \) in improper fractions. She has \( 2 \frac{3}{4} \), converting that gives \( \frac{11}{4} \). To compare, convert both to a common denominator (which is 12). Marissa needs \( \frac{32}{12} \) and has \( \frac{33}{12} \). Therefore, she has enough ribbon—just enough and a little extra for those crafty endeavors!