作业帮第九题,麻烦写在纸上.
来源：学生作业帮 编辑：作业帮 分类：数学作业 时间：2024/05/24 20:58:07
第九题,麻烦写在纸上.
3/5 × 1/6 ×5/7
=1/10 ×5/7
=1/14
8/9 ÷ 4/7 ÷1/3
=8/9 ×7/4 ×3
=14/3
5/14 ÷ 4/21 ×16/25
=5/14 ×21/4 ×16/25
=6/5
2- 6/13 ÷ 9/26 -2/3
=2- 6/13 × 26/9 -2/3
=2- 4/3 -2/3
=0
(3/4 - 3/16) × (2/9 + 1/3)
=(12/16 - 3/16) × (2/9 + 3/9)
=9/16 × 5/9
=5/16
10
2÷ 1/2 ×6
=4×6
=24（分钟）
11
15÷ 50 ×7
=21/10(m)
=1/10 ×5/7
=1/14
8/9 ÷ 4/7 ÷1/3
=8/9 ×7/4 ×3
=14/3
5/14 ÷ 4/21 ×16/25
=5/14 ×21/4 ×16/25
=6/5
2- 6/13 ÷ 9/26 -2/3
=2- 6/13 × 26/9 -2/3
=2- 4/3 -2/3
=0
(3/4 - 3/16) × (2/9 + 1/3)
=(12/16 - 3/16) × (2/9 + 3/9)
=9/16 × 5/9
=5/16
10
2÷ 1/2 ×6
=4×6
=24（分钟）
11
15÷ 50 ×7
=21/10(m)