分数乘法：
1.4/7×1/7÷4/7×1/7
2.12×(3/4-1/6)
3.12×(1/6+1/2)
4.70×1/35+40×1/35
5.4/5×8×10
6.6×(1/2+1/3)
7.(5/6-2/3)×7/9
8.(1/12+1/5)×60
9.20×(1-1/4-1/5)
10.1/3×7+2/3×7
11.3/4×99+3/4
12.2/7×3/4×14
13.8/9×27+1/9×27
14.2/5×2/7×5/8
15.1/4×8÷1/4×8
16.20×(1/5+1/4)
17.(1/2-1/4)×12
18.5/4×3.6×8
19.(1/8+1/4)×16
20.2/5-2/5×5/12
21.(1/8+1/24)×96
22.17/4×101-17/4
23.28×(4-8/7)
24.(2/3-4/7)×21
25.56×(1/7-1/8)
分数除法：
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
百分数口算题：
12÷3/5=
9÷6/7=
30÷5/6=
4×（3/2 ）=
4×7/5 =
3÷4/5=
24×16/7 =
4÷4/5=
6÷3/4=
10÷2/5=
18÷4/9=
4×4/5=
6×3/4=
10×2/5=
18×4/9=
3÷3/4=
2÷1/3=
6÷4/5=
1÷5/7=
3/4÷3=1
1/3÷2=
4/5÷6=
5/7÷1=
2/1*2=
3/1*3=
3/2*3=
3/1*6=
4/3*8=
5/3*20=
7/3*14=
8/7*40=
4/3*16=
9/5*27=
2/1*30=
12/7*24=
30/1*30=
51/9*102=
19/9*76=
4/9*8=
5/8*90=
99/98*99=
3/14*6=
7/1*28=
10/1*90=
5/3*105=
19/7*38=
5/1*25=
8/19*16=
61/60*122=
7/2*28=
6/1*48=8
9/7*18=
25/7*100=
9/5*81=
8/9*16=