问题
解答题
化简下面各比
|
答案
(1)16:30,
=(16÷2):(30÷2),
=8:15;
(2)3.5:0.7,
=(3.5×10÷7):(0.7×10÷7),
=5:1;
(3)0.5吨:25千克,
=500千克:25千克,
=(500÷25):(25÷25),
=20:1;
(4)
:2 3
,1 6
=(
×6):(2 3
×6),1 6
=4:1;
(5)
:2 9
,5 6
=(
×18):(2 9
×18),5 6
=4:15;
(6)15分:1时,
=15分:60分,
=(15÷15):(60÷15),
=1:4.