Question

以下请递等式计算!感谢！！！！！！！！！！

2/9-7/16×2/9+5/16÷4又1/2
6/7×5/26÷3/65÷18
﹙5/27-5/37﹚÷5/9
35÷﹙5/3-7/9﹚
求求求啊！！！！！！！！大家想行行好帮帮忙吧！！！！！

Answer 1

2/9-7/16×2/9+5/16÷4又1/2
=2/9-7/72+5/16÷9/2
=2/9-7/72+5/16×2/9
=2/9-7/72+5/72
=16/72-7/72+5/72
=14/72
=7/26
6/7×5/26÷3/65÷18
=6/7×5/26×65/3×1/18
=25/126
﹙5/27-5/37﹚÷5/9
=﹙5/27-5/37﹚×9/5
=5/27×9/5-5/37×9/5
=1/3-9/37
=28/101
35÷﹙5/3-7/9﹚
=35÷8/9
=315/9