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1.1/5 × 2 1/4
2. 3 1/3 × 2/7
3. 4 1/10 × 1/8
4. 1/9 × 5 1/3
5. 6 1/2 × 1/8
6. 1 1/2 ÷ 1/8
7. 8 1/5 ÷ 1/4
8. 6 1/3 ÷ 2/4
9. 1/3 ÷ 2 2/3
10. 4/6 ÷ 2 1/7
11. 7/4 x 4/2
12. 8/7 x 4/2
13. 7/6 x 8/4
14. 8/7 x 3
15. 9x10/7
16. 9/25 ÷ 27/5
17. 3/13 ÷ 2/3
18. 9/40 ÷ 18/30
19. 7/16 ÷ 9/8
20. 4/15 ÷ 6/12
Answers & Comments
Answer:
1. 1/5 × 2 1/4
= 1/5 × 9/4
4= 1 × 9
5 × 4
5 × 4= 9/20
2. 3 1/3 × 2/7
7= 10/3 × 2/7
7= 10 × 2
3 × 7
3 × 7= 20/21
3. 4 1/10 × 1/8
= 41/10 × 1/8
= 41 × 1
10 × 8
= 41/80
4. 1/9 × 5 1/3
= 1/9 × 16/3
= 1 × 16
9 × 3
= 16/27
5. 6 1/2 × 1/8
= 13/2 × 1/8
= 13 × 1
2 × 8
= 13/16
6. 1 1/2 ÷ 1/8
= 3/2 ÷ 1/8
8= 3/2 × 8/1
1= 3 × 8
2 × 1
2 × 1= 24/2
2= 24 ÷ 2
2 ÷ 2 = 12
7. 8 1/5 ÷ 1/4
= 41/5 ÷ 1/4
4= 41/5 × 4/1
1= 41 × 4
5 × 1
5 × 1= 164/5 = 32 4/5
8. 6 1/3 ÷ 2/4
= 19/3 ÷ 2/4
4= 19/3 × 4/2
2= 19 × 4
3 × 2
3 × 2= 76/6
= 76 ÷ 2
6 ÷ 2
6 ÷ 2= 38/3
= 12 2/3
9. 1/3 ÷ 2 2/3
= 1/3 ÷ 8/3
3= 1/3 × 3/8
8= 1 × 3
3 × 8
3 × 8= 3/24
24= 3 ÷ 3
24 ÷ 3
24 ÷ 3= 1/8
10. 4/6 ÷ 2 1/7
= 4/6 ÷ 15/7
7= 4/6 × 7/15
15= 4 × 7
6 × 15
6 × 15= 28/90
90= 28 ÷ 2
90 ÷ 2
90 ÷ 2= 14/45
11. 7/4 x 4/2
= 7 × 4
4 × 2
4 × 2= 28/8
8= 28 ÷ 4
8 ÷ 4
8 ÷ 4= 7/2 = 3 1/2
12. 8/7 x 4/2
= 8 × 4
7 × 2
7 × 2= 32/14
14= 32 ÷ 2
14 ÷ 2
14 ÷ 2= 16/7 = 2 2/7
13. 7/6 x 8/4
= 7 × 8
6 × 4
6 × 4= 56/24
24= 56 ÷ 8
24 ÷ 8
24 ÷ 8= 7/3 = 2 1/3
14. 8/7 x 3
= 8 × 3
7 × 1
7 × 1= 24/7 = 3 3/7
15. 9x10/7
= 9 × 10
1 × 7
1 × 7= 90/7 = 12 6/7
16. 9/25 ÷ 27/5
= 9 × 5
25 × 27
25 × 27= 45/675
675= 45 ÷ 45
675 ÷ 45
675 ÷ 45= 1/15
17. 3/13 ÷ 2/3
= 3 × 3
13 × 2
13 × 2= 9/26
18. 9/40 ÷ 18/30
= 9/40 × 30/18
18= 9 × 30
40 × 18
40 × 18= 270/720
720= 270 ÷ 90
720 ÷ 90
720 ÷ 90= 3/8
19. 7/16 ÷ 9/8
= 7/16 × 8/9
9= 7 × 8
16 × 9
16 × 9= 56/144
144= 56 ÷ 8
144 ÷ 8
144 ÷ 8= 7/18
20. 4/15 ÷ 6/12
= 4/15 × 12/6
6= 4 × 12
15 × 6
15 × 6= 48/90
90= 48 ÷ 6
90 ÷ 6
90 ÷ 6= 8/15