1. 3/7 Ã 49/9 - 4/3
2. 8/9 Ã 15/36 + 1/27
3. 12Ã 5/6 â 2/9 Ã3
4. 8Ã 5/4 + 1/4
5. 6÷ 3/8 â 3/8 ÷6
6. 4/7 Ã 5/9 + 3/7 Ã 5/9
7. 5/2 -ï¼ 3/2 + 4/5 ï¼
8. 7/8 + ï¼ 1/8 + 1/9 ï¼
9. 9 Ã 5/6 + 5/6
10. 3/4 Ã 8/9 - 1/3
11. 7 Ã 5/49 + 3/14
12. 6 Ãï¼ 1/2 + 2/3 ï¼
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