3,1.5,1,0.75,0.6,( ),( ),( )规律是什么
问题描述：
3,1.5,1,0.75,0.6,( ),( ),( )规律是什么
答
3×1/2=1.51.5×2/3=11×3/4=0.750.75×4/5=0.6()=0.6×5/6=0.5()=0.5×6/7=3/7()=(3/7)×(7/8)=3/83,1.5,1,0.75,0.6,( 0.5),(3/7 ),(3/8 )规律：从第二项开始,依次为前一项乘以(项数-1)/项数.