在横线上填入>、<或=. 78×0.01 78÷100 3.6 3.6÷0.99 2.3 2.3×1.001 5.4 5.4×0.999.
3.5==( )÷6=( ):( )最简比.
÷40= = :16= %=0.375.
= ÷48.
== ÷ .
=18: = :20== ÷40= [填小数].