1. What is (-5) × (+3)?

2. What is (-12) ÷ (-4)?

3. List common factors of 18 and 24 (comma-separated)

4. What’s the LCD of 5 and 4?

5. Simplify 9/12

6. Convert 2 1/4 to improper fraction

7. What is (+7) × (-3)?

8. Simplify 15/25

9. LCD of 8 and 12?

10. Convert 3 2/5 to improper fraction

11. What is (-18) ÷ (+6)?

12. List common factors of 16 and 24

13. What is (-4) × (-6)?

14. LCD of 7 and 3?

15. Simplify 14/21

16. Convert 5 3/8 to improper fraction

17. What is 20 ÷ (-5)?

18. List common factors of 30 and 45

19. What is (-9) × 2?

20. Simplify 24/36