问题
填空题
|
答案
:7 20
,5 7
=(
×140):(7 20
×140),5 7
=49:100,
:7 20
,5 7
=
÷7 20
,5 7
=0.49.
故答案为:49:100,0.49.
|
:7 20
,5 7
=(
×140):(7 20
×140),5 7
=49:100,
:7 20
,5 7
=
÷7 20
,5 7
=0.49.
故答案为:49:100,0.49.