Explain how prime factorization is useful to find the greatest common factor and least common multiple. Describe the set of natural numbers in your own words. What is the difference between a prime number and a composite number? What are equivalent fractions? Explain how two fractions can be equivalent. Give practical examples of fractions that are equivalent. How would you teach this concept to a class? How would you teach the notion of decimal place value to a class? How are decimal numbers related to rational numbers? When is a decimal number also a rational number?
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