8 6 5 3 6 5 1 5 2 4 3 5 0 1 2 1 6 5 1 2 ()()()()()括号里是什么数?

问题描述:

8 6 5 3 6 5 1 5 2 4 3 5 0 1 2 1 6 5 1 2 ()()()()()括号里是什么数?
2.90%,1,4/5,110%,0.7,()()()是什么数?

2.90%,1,4/5,110%,0.7,(1.2)(0.6)(1.3)