把1.2米:80厘米化成最简整数比是 : ,比值是 .
0.75==18÷ =÷ .
%= ÷30== (填小数)= 折.
= ÷ =0.8= %= :10.
=65%= ÷20=26: = (小数)
: == ÷6=6÷ .