问题
解答题
|
答案
63:27,
=(63÷9):(27÷9),
=7:3,
:3 8
,3 4
=(
×3 8
):(8 3
×3 4
),8 3
=1:2;
0.63:0.07,
=(0.63×100):(0.07×100),
=63:7,
=(63÷7):(7÷7),
=9:1;
千米:240米,3 5
=600米:240米,
=600:240,
=(600÷120):(240÷120),
=5:2.