某正整数加3能被3整除,加4能被4整除,加5能被5整除,加6能被6整除,满足条件的正整数最小是 .
÷40=20: =0.8= : .
3÷ == :12=六成= %
0.25= ÷8== : .
40: =8:10= /5= (填小数)
=18: = ÷40= [填小数].