问题
解答题
化简比
|
答案
81:27,
=(81÷27):(27÷27),
=3:1;
0.3:0.09,
=(0.3×100):(0.09×100),
=30:9,
=(30÷3):(9÷3),
=10:3,
5:
,5 7
=(5×
):(7 5
×5 7
),7 5
=7:1;
0.25:1,
=(0.25×4):(1×4),
=1:4.
化简比
|
81:27,
=(81÷27):(27÷27),
=3:1;
0.3:0.09,
=(0.3×100):(0.09×100),
=30:9,
=(30÷3):(9÷3),
=10:3,
5:
,5 7
=(5×
):(7 5
×5 7
),7 5
=7:1;
0.25:1,
=(0.25×4):(1×4),
=1:4.