星期一,三(1)班有48人上课,l人请病假,1人请事假,这天三(1)班的出勤率是 %.
=== ÷ .
= ÷5=0.8=4: = %= 折.
÷8=0.25= %= :16.
==8÷ == (小数).
÷4==15÷ = = 折.