如图是两个钟面.(1)3时,时针和分针所成的角是 度.(2)5时,时针和分针所成的角是 度.
÷40= = :16= %=0.375.
= ÷48.
== ÷ .
=18: = :20== ÷40= [填小数].
0.5:1= ÷4= ÷= %