找规律：4,7/4,10/9,( ),16/25,( )
问题描述：
找规律：4,7/4,10/9,( ),16/25,( )
答
4=4/(1*1)
7/4=(4+3)/(2*2)
10/9=(7+3)/(3*3)
( )=(10+3)/(4*4)=13/16
16/25=(13+3)/(5*5)
( )=(16+3)/(6*6)=19/36
13/16,19/36