问题
解答题
化简比. 0.4:
50千克:1吨. |
答案
(1)0.4:
,2 5
=(0.4×
):(5 2
×2 5
),5 2
=1:1;
(2)
:3 8
,3 4
=(
×3 8
):(8 3
×3 4
),8 3
=1:2;
(3)50千克:1吨,
=50千克:(1×1000千克),
=50:1000,
=(50÷50):(1000÷50),
=1:20.
化简比. 0.4:
50千克:1吨. |
(1)0.4:
,2 5
=(0.4×
):(5 2
×2 5
),5 2
=1:1;
(2)
:3 8
,3 4
=(
×3 8
):(8 3
×3 4
),8 3
=1:2;
(3)50千克:1吨,
=50千克:(1×1000千克),
=50:1000,
=(50÷50):(1000÷50),
=1:20.