Unit 8 Lesson 9: Exercise 3

Find the HCF and LCM of these sets of numbers.

  1. 30 and 39
  2. 20 and 40
  3. 12 and 36
  4. 42 and 64
  5. 32 and 72
  6. 12, 18 and 24
  7. 24, 30 and 36
  8. 36, 52 and 78
  9. 20, 40 and 60
  10. 100, 120 and 150
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