甲:乙:(1)把甲看作单位“1”,则乙是甲的 .(2)把乙看作单位“1”,则甲是乙的 .
÷6=0.75== %= 折.
18:( )==( )÷6==( )%
÷5===0.6=15÷ .
10: = :33≈ %
: =0.75= = %.