Answer:

1. 1 1/5 × 2 1/4 = 2 7/20

2. 3 1/3 × 2/7 = 1 3/7

3. 4 1/10 × 1/8 = 17/200

4. 1/9 × 5 1/3 = 5/27

5. 6 1/2 × 1/8 = 13/8

6. 1 1/2 ÷ 1/8 = 12

7. 8 1/5 ÷ 1/4 = 41

8. 6 1/3 ÷ 2/4 = 19 1/2

9. 1/3 ÷ 2 2/3 = 1/9

10. 4/6 ÷ 2 1/7 = 4/27

11. 7/4 x 4/2 = 7/2 = 3 1/2

12. 8/7 x 4/2 = 16/7 = 2 2/7

13. 7/6 x 8/4 = 14/3 = 4 2/3

14. 8/7 x 3 = 24/7 = 3 3/7

15. 9x10/7 = 90/7 = 12 6/7

16. 9/25 ÷ 27/5 = 1/15

17. 3/13 ÷ 2/3 = 9/26

18. 9/40 ÷ 18/30 = 3/8

19. 7/16 ÷ 9/8 = 7/18

20. 4/15 ÷ 6/12 = 8/15

Using a scientific calculator, here's the results.

[tex]1. \frac{1}{10} \\ 2. \frac{2}{7} \\ 3. \frac{1}{20} \\ 4. \frac{5}{27} [/tex]

[tex]5. \frac{3}{8} \\ 6.4 \\ 7. \frac{32}{5} \\ 8.4 \\ 9. \frac{1}{4} [/tex]

[tex]10. \frac{7}{3} 11. \frac{7}{2} 12. \frac{16}{7} 13. \frac{7}{3} 14. \frac{24}{7} 15. \frac{90}{7} \\ 16. \frac{1}{15} 17. \frac{9}{26} 18. \frac{3}{8} 19. \frac{7}{18} 20. \frac{8}{15} [/tex]

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