把40,44,45,63,65,78,99,105平均分成两组,并且使这两组数的乘积相等,直接写出分组情况: .
=20÷ =8: =0.8= %= .
=3÷2=15: = %= (小数)
0.6=3: = ÷15= 成= %
4: == ÷10= %
36÷ ==0.4=4: = %