1. Find all of the factors of 15. A. 1, 3, 5 B. 1, 3 C. 3, 5, 15 D. 1, 3, 5, 15 Hint 2. Write 0.5 in words. A. five ones B. five tenths C. five hundreds D. five tens Hint 3. Find the common factors of 10, 20, and 40. A. 1, 2, 5, 10 B. 1, 2, 5, 10, 20, 40 C. 1, 2, 5, 10, 20 D. 1, 2, 5, 8, 10 Hint 4. Find the GCF of 8 and 12. A. 4 B. 8 C. 6 D. 24 Hint 5. Write the prime factorization of 28. A. 2 × 2 × 7 B. 2 × 2 × 2 × 7 C. 4 × 7 D. 2 × 2 × 7 × 28 Hint 6. Write the prime factorization of 40. A. 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 B. 2 × 2 × 2 × 2 × 5 C. 2 × 2 × 2 × 5 D. 10 × 4 Hint 7. Find two fractions that are equivalent to . Check your answer using fraction tiles or number lines. A. B. C. D. Hint 8. Find the number for □ that makes the fractions equivalent. A. 6 B. 12 C. 10 D. 8 Hint 9. Write the fraction in simplest form. If the fraction is in simplest form, write simplified. A. B. C. D. simplified Hint 10. Write the fraction in simplest form. If the fraction is in simplest form, write simplified. A. B. C. D. simplified Hint 11. Write 0.875 as a fraction in simplest form. A. B. C. D. Hint 12. Write 0.72 as a fraction in simplest form. A. B. C. D. Hint 13. List multiples to find the first two common multiples of 3, 5, and 12. A. 60, 180 B. 60, 90 C. 60, 120 D. 30, 60 Hint 14. Find the LCM of 2, 3, and 10. Make a table or number line. A. 90 B. 15 C. 30 D. 60 Hint 15. Compare the pair of fractions using models or the LCD. A. none of the above B. C. D. Hint 16. Replace the ○ with <, >, or = to make a true statement. ○ A. none of the above B. < C. = D. > Hint