问题
解答题
化简比.
|
答案
(1)
:5 6
,7 8
=(
×24):(5 6
:(7 8
×24),7 8
=20:21;
(2)1.8:2.4,
=(1.8×5):(2.4×5),
=9:12,
=3:4;
(3)1.2吨:750千克,
=1200千克:750千克,
=(1200÷150):(750÷150),
=8:5.
化简比.
|
(1)
:5 6
,7 8
=(
×24):(5 6
:(7 8
×24),7 8
=20:21;
(2)1.8:2.4,
=(1.8×5):(2.4×5),
=9:12,
=3:4;
(3)1.2吨:750千克,
=1200千克:750千克,
=(1200÷150):(750÷150),
=8:5.