问题
解答题
化简
|
答案
(1)18:24,
=(18÷6):(24÷6),
=3:4;
(2)3:0.5,
=(3×2):(0.5×2),
=6:1;
(3)
:5 8
,5 9
=(
×72):(5 8
×72),5 9
=45:40,
=9:8;
(4)1.5小时:45分,
=90分:45分,
=(90÷45):(45÷45),
=2:1.
化简
|
(1)18:24,
=(18÷6):(24÷6),
=3:4;
(2)3:0.5,
=(3×2):(0.5×2),
=6:1;
(3)
:5 8
,5 9
=(
×72):(5 8
×72),5 9
=45:40,
=9:8;
(4)1.5小时:45分,
=90分:45分,
=(90÷45):(45÷45),
=2:1.