好的给高分!!!
1. 3/7 × 49/9 - 4/3
2. 8/9 × 15/36 + 1/27
3. 12× 5/6 – 2/9 ×3
4. 8× 5/4 + 1/4
5. 6÷ 3/8 – 3/8 ÷6
6. 4/7 × 5/9 + 3/7 × 5/9
7. 5/2 -( 3/2 + 4/5 )
8. 7/8 + ( 1/8 + 1/9 )
9. 9 × 5/6 + 5/6
10. 3/4 × 8/9 - 1/3
11. 7 × 5/49 + 3/14
12. 6 ×( 1/2 + 2/3 )
13. 8 × 4/5 + 8 × 11/5
14. 31 × 5/6 – 5/6
15. 9/7 - ( 2/7 – 10/21 )
16. 5/9 × 18 – 14 × 2/7
17. 4/5 × 25/16 + 2/3 × 3/4
18. 14 × 8/7 – 5/6 × 12/15
19. 17/32 – 3/4 × 9/24
20. 3 × 2/9 + 1/3
2. 8/9 × 15/36 + 1/27
3. 12× 5/6 – 2/9 ×3
4. 8× 5/4 + 1/4
5. 6÷ 3/8 – 3/8 ÷6
6. 4/7 × 5/9 + 3/7 × 5/9
7. 5/2 -( 3/2 + 4/5 )
8. 7/8 + ( 1/8 + 1/9 )
9. 9 × 5/6 + 5/6
10. 3/4 × 8/9 - 1/3
11. 7 × 5/49 + 3/14
12. 6 ×( 1/2 + 2/3 )
13. 8 × 4/5 + 8 × 11/5
14. 31 × 5/6 – 5/6
15. 9/7 - ( 2/7 – 10/21 )
16. 5/9 × 18 – 14 × 2/7
17. 4/5 × 25/16 + 2/3 × 3/4
18. 14 × 8/7 – 5/6 × 12/15
19. 17/32 – 3/4 × 9/24
20. 3 × 2/9 + 1/3
温馨提示:答案为网友推荐,仅供参考
第1个回答 2012-06-14
5/1÷【(3/2+5/1)×13/1】 答案:3 ( / 是分数线)
3/2÷(2/1+3/2)×7/2 答案:1
6/25÷9+6/25×8/9 答案:6/25
1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72+1/81+1/90+1/110 答案:10/11
4/7 ×3/100+1/7×4/100+1/7×12/100 答案:1/25
3/2÷(2/1+3/2)×7/2 答案:1
6/25÷9+6/25×8/9 答案:6/25
1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72+1/81+1/90+1/110 答案:10/11
4/7 ×3/100+1/7×4/100+1/7×12/100 答案:1/25
第2个回答 2012-06-17
3/7 × 49/9 - 4/3
=7/3-4/3
=1
=7/3-4/3
=1