第1个回答 2017-08-29
1. 5/9 × 18 – 14 × 2/7
2. 4/5 × 25/16 + 2/3 × 3/4
3. 14 × 8/7 – 5/6 × 12/15
4. 17/32 – 3/4 × 9/24
5. 3 × 2/9 + 1/3
6. 5/7 × 3/25 + 3/7
7.3/14 ×× 2/3 + 1/6
8. 1/5 × 2/3 + 5/6
9. 9/22 + 1/11 ÷ 1/2
10. 5/3 × 11/5 + 4/3
11. 45 × 2/3 + 1/3 × 15
12. 7/19 + 12/19 × 5/6
13. 1/4 + 3/4 ÷ 2/3
14. 8/7 × 21/16 + 1/2
15. 101 × 1/5 – 1/5 × 21