问题
解答题
化简比与求比值.
|
答案
(1)480千克:1.2吨,
=480千克:1200千克,
=480:1200,
=(480÷240):(1200÷240),
=2:5;
(2)
:6 7
,2 21
=
÷6 7
,2 21
=
×6 7
,21 2
=9.
化简比与求比值.
|
(1)480千克:1.2吨,
=480千克:1200千克,
=480:1200,
=(480÷240):(1200÷240),
=2:5;
(2)
:6 7
,2 21
=
÷6 7
,2 21
=
×6 7
,21 2
=9.