是要我出嘛?
1.6÷3/8–3/8÷6
=1/6x(3/8-3/8)
=1/6x0
=0
2.4/7×5/9+3/7×5/9
=(4/7+3/7)x5/9
=1x5/9
=5/9
3.5/2-(3/2+4/5)
=5/2-3/2-4/5
=1-4/5
=1/5
4.6×(1/2+2/3)
=6x1/2+6x2/3
=3+4
=7
5.8×4/5+8×11/5
=8x(4/5+11/5)
=8x3
=24
6.31×5/6–5/6
=(31-1)x5/6
=30x5/6
=25
7.4/5×25/16+2/3×3/4
=5/4+1/2
=5/4+2/4
=7/4
8.101×1/5–1/5×21
=(101-21)x1/5
=80x1/5
=16
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
31.58+42=
(2)87-45=
(3)125×8=
32.50×12=
一下子没法出这么多题
从别处找来的