问题
解答题
化简比. (1)63:1.25 (2)
(3)0.32千米:560米. |
答案
(1)63:1.25,
=(63×4):(1.25×4),
=252:5;
(2)
:4 6
,3 5
=(
×30):(4 6
×30),3 5
=20:18,
=10:9;
(3)0.32千米:560米,
=320米:560米,
=(320÷80):(560÷80),
=4:7.
化简比. (1)63:1.25 (2)
(3)0.32千米:560米. |
(1)63:1.25,
=(63×4):(1.25×4),
=252:5;
(2)
:4 6
,3 5
=(
×30):(4 6
×30),3 5
=20:18,
=10:9;
(3)0.32千米:560米,
=320米:560米,
=(320÷80):(560÷80),
=4:7.