如题所述
第1个回答 2016-05-20
应是
8/15×[5/6÷(7/9-1/3)]
=8/15 ×5/6 ×9/4
=1
8/15×[5/6÷(7/9-1/3)]
=8/15 ×5/6 ×9/4
=1
第2个回答 推荐于2017-09-21
=8/15x[5/6÷(7/9-3/9)]
=8/15x(5/6÷4/9)
=8/15x(5/6x9/4)
=8/15x15/4
=2本回答被网友采纳
=8/15x(5/6÷4/9)
=8/15x(5/6x9/4)
=8/15x15/4
=2本回答被网友采纳