问题
解答题
化简下面各比.
|
答案
(1)
:8 5
,2 3
=(
×15):(8 5
×15),2 3
=24:10,
=12:5;
(2)4.5:2.7,
=(4.5×10÷9):(2.7×10÷9),
=5:3;
(3)12:16,
=(12÷4):(16÷4),
=3:4;
(4)2:0.5,
=(2×2):(0.5×2),
=4:1.
化简下面各比.
|
(1)
:8 5
,2 3
=(
×15):(8 5
×15),2 3
=24:10,
=12:5;
(2)4.5:2.7,
=(4.5×10÷9):(2.7×10÷9),
=5:3;
(3)12:16,
=(12÷4):(16÷4),
=3:4;
(4)2:0.5,
=(2×2):(0.5×2),
=4:1.