把1块8公顷的地平均分成4份,其中3份种辣椒,辣椒地占这块地的 .
12÷ ==0.375= :64= ÷24.
=== ÷ = (小数)
== :20= ÷ .
: ===4÷ .
9: =3:4=12: == (此空填小数)