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Can I please get some help on these

Can I please get some help on these-example-1
User Rising
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Answer:

11. 10/9 = 80/72

12. 8/12 = 72/108

13. 22/99 = 2/9

14 4 41/123 = 4 1/3

15. 84/840 = 1/10

16. 6/14 vs 3/7 (cross multiply numerators and denominators)

42 vs 42

Therefore 6/14 = 3/7

17. 2/3 vs 5/7 (cross multiply numerators and denominators)

14 vs 15

Therefore 2/3 < 5/7

18. 1/5, 1/2, 1/4 (Change to decimals then compare)

.20 .50 .25

Therefore increasing order is 1/5, 1/4, 1/2

19. 5/7, 5/6, 7/9 (Change to decimals then compare)

.71 .83 .77

Therefore increasing order is 5/7, 7/9, 5/6

Explanation:

User Awesoon
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