PLZ HELP 20 points and Brainliest for first correct answer ( all useless answers will get reported)

1. 19/52

2. 5/81

3. 33/2

4. 1

5. 10/3

6. 4/3

7. 6/5

8. 48/13

9. 3

10. 35/18

11. 11/20

12.8/3

13. 10/3

14. 4

15. 4

hope this helps !!!

1) 19/52

2) 5/18

3) 33

4) 1

5) 3 1/3

6) 1 1/3

7) 1 1/5

8) 3 9/13

9) 3

10) 1 17/18

11) 11/20

12) 2 2/3

13) 3 1/3

14) 4

15) 4

Step-by-step explanation:

1) 1/2 × 19/26 = 19/52

2) 1/9 × 5/9 = 5/18

3) 11/1 × 3/1 = 33/1 = 33

4) 16/9 × 9/16 = 144/144 = 1

5) 2/1 × 5/3 = 10/3 = 3 1/3

6) 7/6 × 8/7 = 56/42 ÷ 7/7 = 8/6 ÷ 2/2 = 4/3 = 1 1/3

7) 1/1 × 6/5 = 6/5 = 1 1/5

8) 3/13 × 16/1 = 48/13 = 3 9/13

9) 4/5 × 15/4 = 60/20 = 3

10) 5/3 × 7/6 = 35/18 = 1 17/18

11) 11/10 × 1/2 = 11/20

12) 4/3 × 2/1 = 8/3 = 2 2/3

13) 2/3 ×5/1 = 10/3 = 3 1/3

14) 5/1 × 4/5 = 20/5 = 4

15) 2/1 × 2/1 = 4/1 = 4

which expression can be used to convert 80 us dollars (usd) to australian dollars (aud)?

1 usd = 1.0343 aud

1 aud = 0.9668 usd

step-by-step explanation:

sorry just need the points