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
21.5/7 × 3/25 + 3/7
22.3/14 ×× 2/3 + 1/6
23.1/5 × 2/3 + 5/6
24.9/22 + 1/11 ÷ 1/2
25.5/3 × 11/5 + 4/3
26.45 × 2/3 + 1/3 × 15
27.7/19 + 12/19 × 5/6
28.1/4 + 3/4 ÷ 2/3
29.8/7 × 21/16 + 1/2
30.101 × 1/5 – 1/5 × 21
31.7/8-5/6+11/12
32.6/7+5/14-1/2
33.8-17/42-25/42
34.1-5/9-(2/3+5/9)
35.5/9-(1/6+1/12)我只學過加減法的，有沒有多一點的11/12-2/9+1/12-7/97/12+5/6-3/44/5-2/3+7/62/3+(5/7-5/14)8/9-(5/6-3/4)14/15-(1/4+7/30)29/30-(14/15-3/4)13/24+7/8+11/243-17/18-19/187/9+2/3-4/95/8+1/2+3/419/24+11/12-3/414/15+4/5-2/313/12-1/2-1/34/9-1/6+4/36/7-3/14+1/21-1/2+3/41/2-1/3-1/69/11+7/2-9/228/9-1/3+5/67/12+1/3-1/47/25+4/5-1/21/4+2/3-1/123/8+5/8-13/7-1/2+9/14 這些怎么樣？