已知1.56×2.4=3.744,那么1.56×0.24= ,374.4÷0.24= .
=0.375= :16= %
0.6== ÷30= %
9÷ =0.75= :24= %= 折.
9÷ =0.75== :36= %
6÷ = /16=0.25= :4= %